Home / 1,008,906.72-1,513,359.36-378,117.60

Finding the Fourth Proportional to 1,008,906.72, 1,513,359.36 and 378,117.60

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Solution

The fourth proportional to 1,008,906.72, 1,513,359.36 and 378,117.60 is: 567,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,906.72 : 1,513,359.36 = 378,117.60 : x
  2. Step 2: Convert to fraction form
    1,008,906.72/1,513,359.36 = 378,117.60/x
  3. Step 3: Cross multiply
    1,008,906.72x = 1,513,359.36 × 378,117.60
  4. Step 4: Simplify right side
    1,008,906.72x = 572,227,809,140.74
  5. Step 5: Solve for x
    x = 572,227,809,140.74/1,008,906.72
  6. Step 6: Final answer
    x = 567,176.13

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.