Home / 1,215,157.38-1,676,910.51-671,330.58

Finding the Fourth Proportional to 1,215,157.38, 1,676,910.51 and 671,330.58

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Solution

The fourth proportional to 1,215,157.38, 1,676,910.51 and 671,330.58 is: 926,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,157.38 : 1,676,910.51 = 671,330.58 : x
  2. Step 2: Convert to fraction form
    1,215,157.38/1,676,910.51 = 671,330.58/x
  3. Step 3: Cross multiply
    1,215,157.38x = 1,676,910.51 × 671,330.58
  4. Step 4: Simplify right side
    1,215,157.38x = 1,125,761,305,286.40
  5. Step 5: Solve for x
    x = 1,125,761,305,286.40/1,215,157.38
  6. Step 6: Final answer
    x = 926,432.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.