Home / 898,399.40-1,347,599.10-449,189.60

Finding the Fourth Proportional to 898,399.40, 1,347,599.10 and 449,189.60

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Solution

The fourth proportional to 898,399.40, 1,347,599.10 and 449,189.60 is: 673,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,399.40 : 1,347,599.10 = 449,189.60 : x
  2. Step 2: Convert to fraction form
    898,399.40/1,347,599.10 = 449,189.60/x
  3. Step 3: Cross multiply
    898,399.40x = 1,347,599.10 × 449,189.60
  4. Step 4: Simplify right side
    898,399.40x = 605,327,500,689.36
  5. Step 5: Solve for x
    x = 605,327,500,689.36/898,399.40
  6. Step 6: Final answer
    x = 673,784.40

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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.