Home / 901,017.88-1,243,388.08-493,111.60

Finding the Fourth Proportional to 901,017.88, 1,243,388.08 and 493,111.60

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Solution

The fourth proportional to 901,017.88, 1,243,388.08 and 493,111.60 is: 680,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,017.88 : 1,243,388.08 = 493,111.60 : x
  2. Step 2: Convert to fraction form
    901,017.88/1,243,388.08 = 493,111.60/x
  3. Step 3: Cross multiply
    901,017.88x = 1,243,388.08 × 493,111.60
  4. Step 4: Simplify right side
    901,017.88x = 613,129,085,549.73
  5. Step 5: Solve for x
    x = 613,129,085,549.73/901,017.88
  6. Step 6: Final answer
    x = 680,484.93

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.