Home / 1,867,787.76-2,577,932.40-1,215,229.20

Finding the Fourth Proportional to 1,867,787.76, 2,577,932.40 and 1,215,229.20

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Solution

The fourth proportional to 1,867,787.76, 2,577,932.40 and 1,215,229.20 is: 1,677,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867,787.76 : 2,577,932.40 = 1,215,229.20 : x
  2. Step 2: Convert to fraction form
    1,867,787.76/2,577,932.40 = 1,215,229.20/x
  3. Step 3: Cross multiply
    1,867,787.76x = 2,577,932.40 × 1,215,229.20
  4. Step 4: Simplify right side
    1,867,787.76x = 3,132,778,728,106.08
  5. Step 5: Solve for x
    x = 3,132,778,728,106.08/1,867,787.76
  6. Step 6: Final answer
    x = 1,677,266.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.