Home / 724,280.18-999,630.35-418,301.57

Finding the Fourth Proportional to 724,280.18, 999,630.35 and 418,301.57

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Solution

The fourth proportional to 724,280.18, 999,630.35 and 418,301.57 is: 577,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,280.18 : 999,630.35 = 418,301.57 : x
  2. Step 2: Convert to fraction form
    724,280.18/999,630.35 = 418,301.57/x
  3. Step 3: Cross multiply
    724,280.18x = 999,630.35 × 418,301.57
  4. Step 4: Simplify right side
    724,280.18x = 418,146,944,824.65
  5. Step 5: Solve for x
    x = 418,146,944,824.65/724,280.18
  6. Step 6: Final answer
    x = 577,327.61

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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.