Home / 555,747.82-766,508.80-478,355.18

Finding the Fourth Proportional to 555,747.82, 766,508.80 and 478,355.18

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Solution

The fourth proportional to 555,747.82, 766,508.80 and 478,355.18 is: 659,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,747.82 : 766,508.80 = 478,355.18 : x
  2. Step 2: Convert to fraction form
    555,747.82/766,508.80 = 478,355.18/x
  3. Step 3: Cross multiply
    555,747.82x = 766,508.80 × 478,355.18
  4. Step 4: Simplify right side
    555,747.82x = 366,663,454,995.58
  5. Step 5: Solve for x
    x = 366,663,454,995.58/555,747.82
  6. Step 6: Final answer
    x = 659,765.89

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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.