Home / 831,331.20-1,246,996.80-298,869.60

Finding the Fourth Proportional to 831,331.20, 1,246,996.80 and 298,869.60

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Solution

The fourth proportional to 831,331.20, 1,246,996.80 and 298,869.60 is: 448,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,331.20 : 1,246,996.80 = 298,869.60 : x
  2. Step 2: Convert to fraction form
    831,331.20/1,246,996.80 = 298,869.60/x
  3. Step 3: Cross multiply
    831,331.20x = 1,246,996.80 × 298,869.60
  4. Step 4: Simplify right side
    831,331.20x = 372,689,434,817.28
  5. Step 5: Solve for x
    x = 372,689,434,817.28/831,331.20
  6. Step 6: Final answer
    x = 448,304.40

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Double scale
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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.