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Finding the Fourth Proportional to 672,864.87, 928,550.74 and 366,940.43

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Solution

The fourth proportional to 672,864.87, 928,550.74 and 366,940.43 is: 506,376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,864.87 : 928,550.74 = 366,940.43 : x
  2. Step 2: Convert to fraction form
    672,864.87/928,550.74 = 366,940.43/x
  3. Step 3: Cross multiply
    672,864.87x = 928,550.74 × 366,940.43
  4. Step 4: Simplify right side
    672,864.87x = 340,722,801,334.96
  5. Step 5: Solve for x
    x = 340,722,801,334.96/672,864.87
  6. Step 6: Final answer
    x = 506,376.27

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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.