Home / 492,220.80-738,331.20-281,685.60

Finding the Fourth Proportional to 492,220.80, 738,331.20 and 281,685.60

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Solution

The fourth proportional to 492,220.80, 738,331.20 and 281,685.60 is: 422,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,220.80 : 738,331.20 = 281,685.60 : x
  2. Step 2: Convert to fraction form
    492,220.80/738,331.20 = 281,685.60/x
  3. Step 3: Cross multiply
    492,220.80x = 738,331.20 × 281,685.60
  4. Step 4: Simplify right side
    492,220.80x = 207,977,267,070.72
  5. Step 5: Solve for x
    x = 207,977,267,070.72/492,220.80
  6. Step 6: Final answer
    x = 422,528.40

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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.