Home / 492,001.20-738,001.80-281,660.40

Finding the Fourth Proportional to 492,001.20, 738,001.80 and 281,660.40

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Solution

The fourth proportional to 492,001.20, 738,001.80 and 281,660.40 is: 422,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,001.20 : 738,001.80 = 281,660.40 : x
  2. Step 2: Convert to fraction form
    492,001.20/738,001.80 = 281,660.40/x
  3. Step 3: Cross multiply
    492,001.20x = 738,001.80 × 281,660.40
  4. Step 4: Simplify right side
    492,001.20x = 207,865,882,188.72
  5. Step 5: Solve for x
    x = 207,865,882,188.72/492,001.20
  6. Step 6: Final answer
    x = 422,490.60

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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.