Home / 1,069,863.40-1,604,795.10-478,887.40

Finding the Fourth Proportional to 1,069,863.40, 1,604,795.10 and 478,887.40

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Solution

The fourth proportional to 1,069,863.40, 1,604,795.10 and 478,887.40 is: 718,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,863.40 : 1,604,795.10 = 478,887.40 : x
  2. Step 2: Convert to fraction form
    1,069,863.40/1,604,795.10 = 478,887.40/x
  3. Step 3: Cross multiply
    1,069,863.40x = 1,604,795.10 × 478,887.40
  4. Step 4: Simplify right side
    1,069,863.40x = 768,516,152,971.74
  5. Step 5: Solve for x
    x = 768,516,152,971.74/1,069,863.40
  6. Step 6: Final answer
    x = 718,331.10

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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.