Home / 1,420,906.57-2,132,877.11-611,691.50

Finding the Fourth Proportional to 1,420,906.57, 2,132,877.11 and 611,691.50

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Solution

The fourth proportional to 1,420,906.57, 2,132,877.11 and 611,691.50 is: 918,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,906.57 : 2,132,877.11 = 611,691.50 : x
  2. Step 2: Convert to fraction form
    1,420,906.57/2,132,877.11 = 611,691.50/x
  3. Step 3: Cross multiply
    1,420,906.57x = 2,132,877.11 × 611,691.50
  4. Step 4: Simplify right side
    1,420,906.57x = 1,304,662,795,673.11
  5. Step 5: Solve for x
    x = 1,304,662,795,673.11/1,420,906.57
  6. Step 6: Final answer
    x = 918,190.42

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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.