Home / 1,215,337.31-1,676,638.56-731,622.18

Finding the Fourth Proportional to 1,215,337.31, 1,676,638.56 and 731,622.18

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Solution

The fourth proportional to 1,215,337.31, 1,676,638.56 and 731,622.18 is: 1,009,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,337.31 : 1,676,638.56 = 731,622.18 : x
  2. Step 2: Convert to fraction form
    1,215,337.31/1,676,638.56 = 731,622.18/x
  3. Step 3: Cross multiply
    1,215,337.31x = 1,676,638.56 × 731,622.18
  4. Step 4: Simplify right side
    1,215,337.31x = 1,226,665,958,339.26
  5. Step 5: Solve for x
    x = 1,226,665,958,339.26/1,215,337.31
  6. Step 6: Final answer
    x = 1,009,321.40

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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.