Home / 1,109,373.40-1,664,716.20-731,386.90

Finding the Fourth Proportional to 1,109,373.40, 1,664,716.20 and 731,386.90

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Solution

The fourth proportional to 1,109,373.40, 1,664,716.20 and 731,386.90 is: 1,097,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,373.40 : 1,664,716.20 = 731,386.90 : x
  2. Step 2: Convert to fraction form
    1,109,373.40/1,664,716.20 = 731,386.90/x
  3. Step 3: Cross multiply
    1,109,373.40x = 1,664,716.20 × 731,386.90
  4. Step 4: Simplify right side
    1,109,373.40x = 1,217,551,620,897.78
  5. Step 5: Solve for x
    x = 1,217,551,620,897.78/1,109,373.40
  6. Step 6: Final answer
    x = 1,097,512.90

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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.