Home / 389,819.60-584,959.80-284,373.20

Finding the Fourth Proportional to 389,819.60, 584,959.80 and 284,373.20

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Solution

The fourth proportional to 389,819.60, 584,959.80 and 284,373.20 is: 426,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,819.60 : 584,959.80 = 284,373.20 : x
  2. Step 2: Convert to fraction form
    389,819.60/584,959.80 = 284,373.20/x
  3. Step 3: Cross multiply
    389,819.60x = 584,959.80 × 284,373.20
  4. Step 4: Simplify right side
    389,819.60x = 166,346,890,197.36
  5. Step 5: Solve for x
    x = 166,346,890,197.36/389,819.60
  6. Step 6: Final answer
    x = 426,727.88

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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.