Home / 916,102.20-1,372,079.70-542,854.20

Finding the Fourth Proportional to 916,102.20, 1,372,079.70 and 542,854.20

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Solution

The fourth proportional to 916,102.20, 1,372,079.70 and 542,854.20 is: 813,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,102.20 : 1,372,079.70 = 542,854.20 : x
  2. Step 2: Convert to fraction form
    916,102.20/1,372,079.70 = 542,854.20/x
  3. Step 3: Cross multiply
    916,102.20x = 1,372,079.70 × 542,854.20
  4. Step 4: Simplify right side
    916,102.20x = 744,839,227,879.74
  5. Step 5: Solve for x
    x = 744,839,227,879.74/916,102.20
  6. Step 6: Final answer
    x = 813,052.55

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Double scale
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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.