Home / 677,135.27-1,015,407.60-256,115.90

Finding the Fourth Proportional to 677,135.27, 1,015,407.60 and 256,115.90

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Solution

The fourth proportional to 677,135.27, 1,015,407.60 and 256,115.90 is: 384,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,135.27 : 1,015,407.60 = 256,115.90 : x
  2. Step 2: Convert to fraction form
    677,135.27/1,015,407.60 = 256,115.90/x
  3. Step 3: Cross multiply
    677,135.27x = 1,015,407.60 × 256,115.90
  4. Step 4: Simplify right side
    677,135.27x = 260,062,026,263.80
  5. Step 5: Solve for x
    x = 260,062,026,263.80/677,135.27
  6. Step 6: Final answer
    x = 384,062.15

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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.