Home / 724,175.73-999,131.30-418,211.69

Finding the Fourth Proportional to 724,175.73, 999,131.30 and 418,211.69

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Solution

The fourth proportional to 724,175.73, 999,131.30 and 418,211.69 is: 576,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,175.73 : 999,131.30 = 418,211.69 : x
  2. Step 2: Convert to fraction form
    724,175.73/999,131.30 = 418,211.69/x
  3. Step 3: Cross multiply
    724,175.73x = 999,131.30 × 418,211.69
  4. Step 4: Simplify right side
    724,175.73x = 417,848,382,418.18
  5. Step 5: Solve for x
    x = 417,848,382,418.18/724,175.73
  6. Step 6: Final answer
    x = 576,998.60

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1.5x scale

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.