Home / 498,436.20-747,827.10-218,154.60

Finding the Fourth Proportional to 498,436.20, 747,827.10 and 218,154.60

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Solution

The fourth proportional to 498,436.20, 747,827.10 and 218,154.60 is: 327,307.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,436.20 : 747,827.10 = 218,154.60 : x
  2. Step 2: Convert to fraction form
    498,436.20/747,827.10 = 218,154.60/x
  3. Step 3: Cross multiply
    498,436.20x = 747,827.10 × 218,154.60
  4. Step 4: Simplify right side
    498,436.20x = 163,141,921,869.66
  5. Step 5: Solve for x
    x = 163,141,921,869.66/498,436.20
  6. Step 6: Final answer
    x = 327,307.53

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.