Home / 672,098.20-1,008,147.30-423,266.20

Finding the Fourth Proportional to 672,098.20, 1,008,147.30 and 423,266.20

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Solution

The fourth proportional to 672,098.20, 1,008,147.30 and 423,266.20 is: 634,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,098.20 : 1,008,147.30 = 423,266.20 : x
  2. Step 2: Convert to fraction form
    672,098.20/1,008,147.30 = 423,266.20/x
  3. Step 3: Cross multiply
    672,098.20x = 1,008,147.30 × 423,266.20
  4. Step 4: Simplify right side
    672,098.20x = 426,714,676,711.26
  5. Step 5: Solve for x
    x = 426,714,676,711.26/672,098.20
  6. Step 6: Final answer
    x = 634,899.30

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Half scale
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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.