Home / 658,345.20-987,517.80-159,709.20

Finding the Fourth Proportional to 658,345.20, 987,517.80 and 159,709.20

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Solution

The fourth proportional to 658,345.20, 987,517.80 and 159,709.20 is: 239,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,345.20 : 987,517.80 = 159,709.20 : x
  2. Step 2: Convert to fraction form
    658,345.20/987,517.80 = 159,709.20/x
  3. Step 3: Cross multiply
    658,345.20x = 987,517.80 × 159,709.20
  4. Step 4: Simplify right side
    658,345.20x = 157,715,677,823.76
  5. Step 5: Solve for x
    x = 157,715,677,823.76/658,345.20
  6. Step 6: Final answer
    x = 239,563.80

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Similar ratio
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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.