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Finding the Fourth Proportional to 539,710.92, 744,812.67 and 298,008.78

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Solution

The fourth proportional to 539,710.92, 744,812.67 and 298,008.78 is: 411,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,710.92 : 744,812.67 = 298,008.78 : x
  2. Step 2: Convert to fraction form
    539,710.92/744,812.67 = 298,008.78/x
  3. Step 3: Cross multiply
    539,710.92x = 744,812.67 × 298,008.78
  4. Step 4: Simplify right side
    539,710.92x = 221,960,715,115.24
  5. Step 5: Solve for x
    x = 221,960,715,115.24/539,710.92
  6. Step 6: Final answer
    x = 411,258.52

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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.