Home / 756,034.80-1,134,149.40-377,149.20

Finding the Fourth Proportional to 756,034.80, 1,134,149.40 and 377,149.20

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Solution

The fourth proportional to 756,034.80, 1,134,149.40 and 377,149.20 is: 565,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,034.80 : 1,134,149.40 = 377,149.20 : x
  2. Step 2: Convert to fraction form
    756,034.80/1,134,149.40 = 377,149.20/x
  3. Step 3: Cross multiply
    756,034.80x = 1,134,149.40 × 377,149.20
  4. Step 4: Simplify right side
    756,034.80x = 427,743,538,890.48
  5. Step 5: Solve for x
    x = 427,743,538,890.48/756,034.80
  6. Step 6: Final answer
    x = 565,772.29

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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.