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Finding the Fourth Proportional to 555,498.65, 766,635.33 and 313,825.58

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Solution

The fourth proportional to 555,498.65, 766,635.33 and 313,825.58 is: 433,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,498.65 : 766,635.33 = 313,825.58 : x
  2. Step 2: Convert to fraction form
    555,498.65/766,635.33 = 313,825.58/x
  3. Step 3: Cross multiply
    555,498.65x = 766,635.33 × 313,825.58
  4. Step 4: Simplify right side
    555,498.65x = 240,589,773,252.57
  5. Step 5: Solve for x
    x = 240,589,773,252.57/555,498.65
  6. Step 6: Final answer
    x = 433,105.96

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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.