Home / 676,872.40-1,015,308.60-672,206.80

Finding the Fourth Proportional to 676,872.40, 1,015,308.60 and 672,206.80

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Solution

The fourth proportional to 676,872.40, 1,015,308.60 and 672,206.80 is: 1,008,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,872.40 : 1,015,308.60 = 672,206.80 : x
  2. Step 2: Convert to fraction form
    676,872.40/1,015,308.60 = 672,206.80/x
  3. Step 3: Cross multiply
    676,872.40x = 1,015,308.60 × 672,206.80
  4. Step 4: Simplify right side
    676,872.40x = 682,497,345,018.48
  5. Step 5: Solve for x
    x = 682,497,345,018.48/676,872.40
  6. Step 6: Final answer
    x = 1,008,310.20

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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.