Home / 918,134.40-1,377,201.60-319,156.10

Finding the Fourth Proportional to 918,134.40, 1,377,201.60 and 319,156.10

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Solution

The fourth proportional to 918,134.40, 1,377,201.60 and 319,156.10 is: 478,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,134.40 : 1,377,201.60 = 319,156.10 : x
  2. Step 2: Convert to fraction form
    918,134.40/1,377,201.60 = 319,156.10/x
  3. Step 3: Cross multiply
    918,134.40x = 1,377,201.60 × 319,156.10
  4. Step 4: Simplify right side
    918,134.40x = 439,542,284,683.75
  5. Step 5: Solve for x
    x = 439,542,284,683.75/918,134.40
  6. Step 6: Final answer
    x = 478,734.14

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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.