Home / 724,376.76-999,589.92-402,061.50

Finding the Fourth Proportional to 724,376.76, 999,589.92 and 402,061.50

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Solution

The fourth proportional to 724,376.76, 999,589.92 and 402,061.50 is: 554,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,376.76 : 999,589.92 = 402,061.50 : x
  2. Step 2: Convert to fraction form
    724,376.76/999,589.92 = 402,061.50/x
  3. Step 3: Cross multiply
    724,376.76x = 999,589.92 × 402,061.50
  4. Step 4: Simplify right side
    724,376.76x = 401,896,622,620.08
  5. Step 5: Solve for x
    x = 401,896,622,620.08/724,376.76
  6. Step 6: Final answer
    x = 554,817.11

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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.