Home / 831,775.20-1,247,662.80-270,866.40

Finding the Fourth Proportional to 831,775.20, 1,247,662.80 and 270,866.40

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Solution

The fourth proportional to 831,775.20, 1,247,662.80 and 270,866.40 is: 406,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,775.20 : 1,247,662.80 = 270,866.40 : x
  2. Step 2: Convert to fraction form
    831,775.20/1,247,662.80 = 270,866.40/x
  3. Step 3: Cross multiply
    831,775.20x = 1,247,662.80 × 270,866.40
  4. Step 4: Simplify right side
    831,775.20x = 337,949,931,049.92
  5. Step 5: Solve for x
    x = 337,949,931,049.92/831,775.20
  6. Step 6: Final answer
    x = 406,299.60

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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.