Home / 1,109,383.40-1,664,731.20-731,396.90

Finding the Fourth Proportional to 1,109,383.40, 1,664,731.20 and 731,396.90

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Solution

The fourth proportional to 1,109,383.40, 1,664,731.20 and 731,396.90 is: 1,097,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,383.40 : 1,664,731.20 = 731,396.90 : x
  2. Step 2: Convert to fraction form
    1,109,383.40/1,664,731.20 = 731,396.90/x
  3. Step 3: Cross multiply
    1,109,383.40x = 1,664,731.20 × 731,396.90
  4. Step 4: Simplify right side
    1,109,383.40x = 1,217,579,239,013.28
  5. Step 5: Solve for x
    x = 1,217,579,239,013.28/1,109,383.40
  6. Step 6: Final answer
    x = 1,097,527.91

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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.