Home / 779,645.70-1,169,468.55-479,151.90

Finding the Fourth Proportional to 779,645.70, 1,169,468.55 and 479,151.90

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Solution

The fourth proportional to 779,645.70, 1,169,468.55 and 479,151.90 is: 718,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,645.70 : 1,169,468.55 = 479,151.90 : x
  2. Step 2: Convert to fraction form
    779,645.70/1,169,468.55 = 479,151.90/x
  3. Step 3: Cross multiply
    779,645.70x = 1,169,468.55 × 479,151.90
  4. Step 4: Simplify right side
    779,645.70x = 560,353,077,722.75
  5. Step 5: Solve for x
    x = 560,353,077,722.75/779,645.70
  6. Step 6: Final answer
    x = 718,727.85

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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.