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Finding the Fourth Proportional to 539,232.92, 744,207.33 and 309,789.77

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Solution

The fourth proportional to 539,232.92, 744,207.33 and 309,789.77 is: 427,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,232.92 : 744,207.33 = 309,789.77 : x
  2. Step 2: Convert to fraction form
    539,232.92/744,207.33 = 309,789.77/x
  3. Step 3: Cross multiply
    539,232.92x = 744,207.33 × 309,789.77
  4. Step 4: Simplify right side
    539,232.92x = 230,547,817,593.01
  5. Step 5: Solve for x
    x = 230,547,817,593.01/539,232.92
  6. Step 6: Final answer
    x = 427,547.74

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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.