Home / 672,089.60-1,008,134.40-448,140.80

Finding the Fourth Proportional to 672,089.60, 1,008,134.40 and 448,140.80

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Solution

The fourth proportional to 672,089.60, 1,008,134.40 and 448,140.80 is: 672,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,089.60 : 1,008,134.40 = 448,140.80 : x
  2. Step 2: Convert to fraction form
    672,089.60/1,008,134.40 = 448,140.80/x
  3. Step 3: Cross multiply
    672,089.60x = 1,008,134.40 × 448,140.80
  4. Step 4: Simplify right side
    672,089.60x = 451,786,156,523.52
  5. Step 5: Solve for x
    x = 451,786,156,523.52/672,089.60
  6. Step 6: Final answer
    x = 672,211.20

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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.