Home / 724,557.25-999,849.98-402,246.59

Finding the Fourth Proportional to 724,557.25, 999,849.98 and 402,246.59

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Solution

The fourth proportional to 724,557.25, 999,849.98 and 402,246.59 is: 555,078.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,557.25 : 999,849.98 = 402,246.59 : x
  2. Step 2: Convert to fraction form
    724,557.25/999,849.98 = 402,246.59/x
  3. Step 3: Cross multiply
    724,557.25x = 999,849.98 × 402,246.59
  4. Step 4: Simplify right side
    724,557.25x = 402,186,248,552.57
  5. Step 5: Solve for x
    x = 402,186,248,552.57/724,557.25
  6. Step 6: Final answer
    x = 555,078.63

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Double scale
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Similar ratio
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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.