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Finding the Fourth Proportional to 573,471.87, 791,411.07 and 315,359.40

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Solution

The fourth proportional to 573,471.87, 791,411.07 and 315,359.40 is: 435,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,471.87 : 791,411.07 = 315,359.40 : x
  2. Step 2: Convert to fraction form
    573,471.87/791,411.07 = 315,359.40/x
  3. Step 3: Cross multiply
    573,471.87x = 791,411.07 × 315,359.40
  4. Step 4: Simplify right side
    573,471.87x = 249,578,920,188.56
  5. Step 5: Solve for x
    x = 249,578,920,188.56/573,471.87
  6. Step 6: Final answer
    x = 435,206.91

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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.