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Finding the Fourth Proportional to 672,698.72, 928,331.48 and 366,772.61

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Solution

The fourth proportional to 672,698.72, 928,331.48 and 366,772.61 is: 506,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,698.72 : 928,331.48 = 366,772.61 : x
  2. Step 2: Convert to fraction form
    672,698.72/928,331.48 = 366,772.61/x
  3. Step 3: Cross multiply
    672,698.72x = 928,331.48 × 366,772.61
  4. Step 4: Simplify right side
    672,698.72x = 340,486,557,880.66
  5. Step 5: Solve for x
    x = 340,486,557,880.66/672,698.72
  6. Step 6: Final answer
    x = 506,150.15

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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.