Home / 1,008,408.60-1,512,612.90-447,499.80

Finding the Fourth Proportional to 1,008,408.60, 1,512,612.90 and 447,499.80

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Solution

The fourth proportional to 1,008,408.60, 1,512,612.90 and 447,499.80 is: 671,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,408.60 : 1,512,612.90 = 447,499.80 : x
  2. Step 2: Convert to fraction form
    1,008,408.60/1,512,612.90 = 447,499.80/x
  3. Step 3: Cross multiply
    1,008,408.60x = 1,512,612.90 × 447,499.80
  4. Step 4: Simplify right side
    1,008,408.60x = 676,893,970,227.42
  5. Step 5: Solve for x
    x = 676,893,970,227.42/1,008,408.60
  6. Step 6: Final answer
    x = 671,249.70

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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.