Home / 1,109,372.40-1,664,714.70-731,385.90

Finding the Fourth Proportional to 1,109,372.40, 1,664,714.70 and 731,385.90

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Solution

The fourth proportional to 1,109,372.40, 1,664,714.70 and 731,385.90 is: 1,097,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,372.40 : 1,664,714.70 = 731,385.90 : x
  2. Step 2: Convert to fraction form
    1,109,372.40/1,664,714.70 = 731,385.90/x
  3. Step 3: Cross multiply
    1,109,372.40x = 1,664,714.70 × 731,385.90
  4. Step 4: Simplify right side
    1,109,372.40x = 1,217,548,859,102.73
  5. Step 5: Solve for x
    x = 1,217,548,859,102.73/1,109,372.40
  6. Step 6: Final answer
    x = 1,097,511.40

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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.