Home / 880,679.38-1,215,337.52-498,779.97

Finding the Fourth Proportional to 880,679.38, 1,215,337.52 and 498,779.97

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Solution

The fourth proportional to 880,679.38, 1,215,337.52 and 498,779.97 is: 688,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,679.38 : 1,215,337.52 = 498,779.97 : x
  2. Step 2: Convert to fraction form
    880,679.38/1,215,337.52 = 498,779.97/x
  3. Step 3: Cross multiply
    880,679.38x = 1,215,337.52 × 498,779.97
  4. Step 4: Simplify right side
    880,679.38x = 606,186,011,765.47
  5. Step 5: Solve for x
    x = 606,186,011,765.47/880,679.38
  6. Step 6: Final answer
    x = 688,316.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.