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Finding the Fourth Proportional to 516,792.47, 713,174.26 and 287,347.29

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Solution

The fourth proportional to 516,792.47, 713,174.26 and 287,347.29 is: 396,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,792.47 : 713,174.26 = 287,347.29 : x
  2. Step 2: Convert to fraction form
    516,792.47/713,174.26 = 287,347.29/x
  3. Step 3: Cross multiply
    516,792.47x = 713,174.26 × 287,347.29
  4. Step 4: Simplify right side
    516,792.47x = 204,928,690,908.76
  5. Step 5: Solve for x
    x = 204,928,690,908.76/516,792.47
  6. Step 6: Final answer
    x = 396,539.62

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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.