Home / 746,691.40-1,120,037.10-426,514.60

Finding the Fourth Proportional to 746,691.40, 1,120,037.10 and 426,514.60

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Solution

The fourth proportional to 746,691.40, 1,120,037.10 and 426,514.60 is: 639,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,691.40 : 1,120,037.10 = 426,514.60 : x
  2. Step 2: Convert to fraction form
    746,691.40/1,120,037.10 = 426,514.60/x
  3. Step 3: Cross multiply
    746,691.40x = 1,120,037.10 × 426,514.60
  4. Step 4: Simplify right side
    746,691.40x = 477,712,175,691.66
  5. Step 5: Solve for x
    x = 477,712,175,691.66/746,691.40
  6. Step 6: Final answer
    x = 639,771.90

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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.