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Finding the Fourth Proportional to 487,728.62, 673,295.62 and 366,916

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Solution

The fourth proportional to 487,728.62, 673,295.62 and 366,916 is: 506,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,728.62 : 673,295.62 = 366,916 : x
  2. Step 2: Convert to fraction form
    487,728.62/673,295.62 = 366,916/x
  3. Step 3: Cross multiply
    487,728.62x = 673,295.62 × 366,916
  4. Step 4: Simplify right side
    487,728.62x = 247,042,935,707.92
  5. Step 5: Solve for x
    x = 247,042,935,707.92/487,728.62
  6. Step 6: Final answer
    x = 506,517.20

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1.5x scale

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.