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Finding the Fourth Proportional to 898,404.10, 1,347,606.15 and 267,235.90

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Solution

The fourth proportional to 898,404.10, 1,347,606.15 and 267,235.90 is: 400,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,404.10 : 1,347,606.15 = 267,235.90 : x
  2. Step 2: Convert to fraction form
    898,404.10/1,347,606.15 = 267,235.90/x
  3. Step 3: Cross multiply
    898,404.10x = 1,347,606.15 × 267,235.90
  4. Step 4: Simplify right side
    898,404.10x = 360,128,742,340.79
  5. Step 5: Solve for x
    x = 360,128,742,340.79/898,404.10
  6. Step 6: Final answer
    x = 400,853.85

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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.