Home / 724,306.36-999,524.10-402,007

Finding the Fourth Proportional to 724,306.36, 999,524.10 and 402,007

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Solution

The fourth proportional to 724,306.36, 999,524.10 and 402,007 is: 554,759.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,306.36 : 999,524.10 = 402,007 : x
  2. Step 2: Convert to fraction form
    724,306.36/999,524.10 = 402,007/x
  3. Step 3: Cross multiply
    724,306.36x = 999,524.10 × 402,007
  4. Step 4: Simplify right side
    724,306.36x = 401,815,684,868.70
  5. Step 5: Solve for x
    x = 401,815,684,868.70/724,306.36
  6. Step 6: Final answer
    x = 554,759.29

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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.