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Finding the Fourth Proportional to 391,567.39, 587,351.56 and 107,260.39

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Solution

The fourth proportional to 391,567.39, 587,351.56 and 107,260.39 is: 160,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,567.39 : 587,351.56 = 107,260.39 : x
  2. Step 2: Convert to fraction form
    391,567.39/587,351.56 = 107,260.39/x
  3. Step 3: Cross multiply
    391,567.39x = 587,351.56 × 107,260.39
  4. Step 4: Simplify right side
    391,567.39x = 62,999,559,560.95
  5. Step 5: Solve for x
    x = 62,999,559,560.95/391,567.39
  6. Step 6: Final answer
    x = 160,890.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.