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Finding the Fourth Proportional to 573,350.64, 791,155.17 and 315,185.10

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Solution

The fourth proportional to 573,350.64, 791,155.17 and 315,185.10 is: 434,917.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,350.64 : 791,155.17 = 315,185.10 : x
  2. Step 2: Convert to fraction form
    573,350.64/791,155.17 = 315,185.10/x
  3. Step 3: Cross multiply
    573,350.64x = 791,155.17 × 315,185.10
  4. Step 4: Simplify right side
    573,350.64x = 249,360,321,371.97
  5. Step 5: Solve for x
    x = 249,360,321,371.97/573,350.64
  6. Step 6: Final answer
    x = 434,917.66

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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.