Home / 724,474.48-999,724.62-402,159.10

Finding the Fourth Proportional to 724,474.48, 999,724.62 and 402,159.10

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Solution

The fourth proportional to 724,474.48, 999,724.62 and 402,159.10 is: 554,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,474.48 : 999,724.62 = 402,159.10 : x
  2. Step 2: Convert to fraction form
    724,474.48/999,724.62 = 402,159.10/x
  3. Step 3: Cross multiply
    724,474.48x = 999,724.62 × 402,159.10
  4. Step 4: Simplify right side
    724,474.48x = 402,048,353,427.04
  5. Step 5: Solve for x
    x = 402,048,353,427.04/724,474.48
  6. Step 6: Final answer
    x = 554,951.71

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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.