Home / 756,055.20-1,134,082.80-437,190.60

Finding the Fourth Proportional to 756,055.20, 1,134,082.80 and 437,190.60

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Solution

The fourth proportional to 756,055.20, 1,134,082.80 and 437,190.60 is: 655,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,055.20 : 1,134,082.80 = 437,190.60 : x
  2. Step 2: Convert to fraction form
    756,055.20/1,134,082.80 = 437,190.60/x
  3. Step 3: Cross multiply
    756,055.20x = 1,134,082.80 × 437,190.60
  4. Step 4: Simplify right side
    756,055.20x = 495,810,339,781.68
  5. Step 5: Solve for x
    x = 495,810,339,781.68/756,055.20
  6. Step 6: Final answer
    x = 655,785.90

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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.