Home / 676,869.40-1,015,304.10-672,203.80

Finding the Fourth Proportional to 676,869.40, 1,015,304.10 and 672,203.80

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Solution

The fourth proportional to 676,869.40, 1,015,304.10 and 672,203.80 is: 1,008,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,869.40 : 1,015,304.10 = 672,203.80 : x
  2. Step 2: Convert to fraction form
    676,869.40/1,015,304.10 = 672,203.80/x
  3. Step 3: Cross multiply
    676,869.40x = 1,015,304.10 × 672,203.80
  4. Step 4: Simplify right side
    676,869.40x = 682,491,274,175.58
  5. Step 5: Solve for x
    x = 682,491,274,175.58/676,869.40
  6. Step 6: Final answer
    x = 1,008,305.70

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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.