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Finding the Fourth Proportional to 713,379.35, 984,452.32 and 391,092.10

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Solution

The fourth proportional to 713,379.35, 984,452.32 and 391,092.10 is: 539,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,379.35 : 984,452.32 = 391,092.10 : x
  2. Step 2: Convert to fraction form
    713,379.35/984,452.32 = 391,092.10/x
  3. Step 3: Cross multiply
    713,379.35x = 984,452.32 × 391,092.10
  4. Step 4: Simplify right side
    713,379.35x = 385,011,525,178.67
  5. Step 5: Solve for x
    x = 385,011,525,178.67/713,379.35
  6. Step 6: Final answer
    x = 539,700.97

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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.