Home / 671,401.60-1,007,102.40-615,414.40

Finding the Fourth Proportional to 671,401.60, 1,007,102.40 and 615,414.40

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Solution

The fourth proportional to 671,401.60, 1,007,102.40 and 615,414.40 is: 923,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,401.60 : 1,007,102.40 = 615,414.40 : x
  2. Step 2: Convert to fraction form
    671,401.60/1,007,102.40 = 615,414.40/x
  3. Step 3: Cross multiply
    671,401.60x = 1,007,102.40 × 615,414.40
  4. Step 4: Simplify right side
    671,401.60x = 619,785,319,234.56
  5. Step 5: Solve for x
    x = 619,785,319,234.56/671,401.60
  6. Step 6: Final answer
    x = 923,121.60

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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.