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Finding the Fourth Proportional to 713,487.86, 984,644.00 and 426,952.79

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Solution

The fourth proportional to 713,487.86, 984,644.00 and 426,952.79 is: 589,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,487.86 : 984,644.00 = 426,952.79 : x
  2. Step 2: Convert to fraction form
    713,487.86/984,644.00 = 426,952.79/x
  3. Step 3: Cross multiply
    713,487.86x = 984,644.00 × 426,952.79
  4. Step 4: Simplify right side
    713,487.86x = 420,396,495,898.78
  5. Step 5: Solve for x
    x = 420,396,495,898.78/713,487.86
  6. Step 6: Final answer
    x = 589,213.25

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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.