Home / 1,229,912.80-1,845,646.80-724,472.80

Finding the Fourth Proportional to 1,229,912.80, 1,845,646.80 and 724,472.80

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Solution

The fourth proportional to 1,229,912.80, 1,845,646.80 and 724,472.80 is: 1,087,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,912.80 : 1,845,646.80 = 724,472.80 : x
  2. Step 2: Convert to fraction form
    1,229,912.80/1,845,646.80 = 724,472.80/x
  3. Step 3: Cross multiply
    1,229,912.80x = 1,845,646.80 × 724,472.80
  4. Step 4: Simplify right side
    1,229,912.80x = 1,337,120,905,007.04
  5. Step 5: Solve for x
    x = 1,337,120,905,007.04/1,229,912.80
  6. Step 6: Final answer
    x = 1,087,167.24

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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.