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Finding the Fourth Proportional to 487,727.62, 673,294.24 and 366,915

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Solution

The fourth proportional to 487,727.62, 673,294.24 and 366,915 is: 506,515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,727.62 : 673,294.24 = 366,915 : x
  2. Step 2: Convert to fraction form
    487,727.62/673,294.24 = 366,915/x
  3. Step 3: Cross multiply
    487,727.62x = 673,294.24 × 366,915
  4. Step 4: Simplify right side
    487,727.62x = 247,041,756,069.60
  5. Step 5: Solve for x
    x = 247,041,756,069.60/487,727.62
  6. Step 6: Final answer
    x = 506,515.82

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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.