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Finding the Fourth Proportional to 1,229,822.80, 1,845,511.80 and 724,382.80

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Solution

The fourth proportional to 1,229,822.80, 1,845,511.80 and 724,382.80 is: 1,087,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,822.80 : 1,845,511.80 = 724,382.80 : x
  2. Step 2: Convert to fraction form
    1,229,822.80/1,845,511.80 = 724,382.80/x
  3. Step 3: Cross multiply
    1,229,822.80x = 1,845,511.80 × 724,382.80
  4. Step 4: Simplify right side
    1,229,822.80x = 1,336,857,005,117.04
  5. Step 5: Solve for x
    x = 1,336,857,005,117.04/1,229,822.80
  6. Step 6: Final answer
    x = 1,087,032.22

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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.