Home / 1,304,916.32-1,800,780.84-724,227.12

Finding the Fourth Proportional to 1,304,916.32, 1,800,780.84 and 724,227.12

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Solution

The fourth proportional to 1,304,916.32, 1,800,780.84 and 724,227.12 is: 999,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,916.32 : 1,800,780.84 = 724,227.12 : x
  2. Step 2: Convert to fraction form
    1,304,916.32/1,800,780.84 = 724,227.12/x
  3. Step 3: Cross multiply
    1,304,916.32x = 1,800,780.84 × 724,227.12
  4. Step 4: Simplify right side
    1,304,916.32x = 1,304,174,321,504.38
  5. Step 5: Solve for x
    x = 1,304,174,321,504.38/1,304,916.32
  6. Step 6: Final answer
    x = 999,431.38

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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.