Home / 924,221.80-1,386,138.30-391,760.20

Finding the Fourth Proportional to 924,221.80, 1,386,138.30 and 391,760.20

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Solution

The fourth proportional to 924,221.80, 1,386,138.30 and 391,760.20 is: 587,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,221.80 : 1,386,138.30 = 391,760.20 : x
  2. Step 2: Convert to fraction form
    924,221.80/1,386,138.30 = 391,760.20/x
  3. Step 3: Cross multiply
    924,221.80x = 1,386,138.30 × 391,760.20
  4. Step 4: Simplify right side
    924,221.80x = 543,033,817,635.66
  5. Step 5: Solve for x
    x = 543,033,817,635.66/924,221.80
  6. Step 6: Final answer
    x = 587,557.90

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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.