Home / 743,412.60-1,120,116.51-672,414.39

Finding the Fourth Proportional to 743,412.60, 1,120,116.51 and 672,414.39

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Solution

The fourth proportional to 743,412.60, 1,120,116.51 and 672,414.39 is: 1,013,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,412.60 : 1,120,116.51 = 672,414.39 : x
  2. Step 2: Convert to fraction form
    743,412.60/1,120,116.51 = 672,414.39/x
  3. Step 3: Cross multiply
    743,412.60x = 1,120,116.51 × 672,414.39
  4. Step 4: Simplify right side
    743,412.60x = 753,182,459,800.58
  5. Step 5: Solve for x
    x = 753,182,459,800.58/743,412.60
  6. Step 6: Final answer
    x = 1,013,141.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.