Home / 778,052.70-1,167,079.05-486,015.30

Finding the Fourth Proportional to 778,052.70, 1,167,079.05 and 486,015.30

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Solution

The fourth proportional to 778,052.70, 1,167,079.05 and 486,015.30 is: 729,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,052.70 : 1,167,079.05 = 486,015.30 : x
  2. Step 2: Convert to fraction form
    778,052.70/1,167,079.05 = 486,015.30/x
  3. Step 3: Cross multiply
    778,052.70x = 1,167,079.05 × 486,015.30
  4. Step 4: Simplify right side
    778,052.70x = 567,218,274,609.47
  5. Step 5: Solve for x
    x = 567,218,274,609.47/778,052.70
  6. Step 6: Final answer
    x = 729,022.95

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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.