Home / 451,249.40-676,874.10-402,260.60

Finding the Fourth Proportional to 451,249.40, 676,874.10 and 402,260.60

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Solution

The fourth proportional to 451,249.40, 676,874.10 and 402,260.60 is: 603,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,249.40 : 676,874.10 = 402,260.60 : x
  2. Step 2: Convert to fraction form
    451,249.40/676,874.10 = 402,260.60/x
  3. Step 3: Cross multiply
    451,249.40x = 676,874.10 × 402,260.60
  4. Step 4: Simplify right side
    451,249.40x = 272,279,781,590.46
  5. Step 5: Solve for x
    x = 272,279,781,590.46/451,249.40
  6. Step 6: Final answer
    x = 603,390.90

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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.