Home / 859,096.20-1,288,644.30-498,897.30

Finding the Fourth Proportional to 859,096.20, 1,288,644.30 and 498,897.30

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Solution

The fourth proportional to 859,096.20, 1,288,644.30 and 498,897.30 is: 748,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,096.20 : 1,288,644.30 = 498,897.30 : x
  2. Step 2: Convert to fraction form
    859,096.20/1,288,644.30 = 498,897.30/x
  3. Step 3: Cross multiply
    859,096.20x = 1,288,644.30 × 498,897.30
  4. Step 4: Simplify right side
    859,096.20x = 642,901,161,930.39
  5. Step 5: Solve for x
    x = 642,901,161,930.39/859,096.20
  6. Step 6: Final answer
    x = 748,345.95

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Double scale
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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.