Home / 916,102.70-1,372,080.45-542,854.70

Finding the Fourth Proportional to 916,102.70, 1,372,080.45 and 542,854.70

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Solution

The fourth proportional to 916,102.70, 1,372,080.45 and 542,854.70 is: 813,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,102.70 : 1,372,080.45 = 542,854.70 : x
  2. Step 2: Convert to fraction form
    916,102.70/1,372,080.45 = 542,854.70/x
  3. Step 3: Cross multiply
    916,102.70x = 1,372,080.45 × 542,854.70
  4. Step 4: Simplify right side
    916,102.70x = 744,840,321,060.62
  5. Step 5: Solve for x
    x = 744,840,321,060.62/916,102.70
  6. Step 6: Final answer
    x = 813,053.30

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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.