Home / 386,788.63-580,197.52-120,548.11

Finding the Fourth Proportional to 386,788.63, 580,197.52 and 120,548.11

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Solution

The fourth proportional to 386,788.63, 580,197.52 and 120,548.11 is: 180,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,788.63 : 580,197.52 = 120,548.11 : x
  2. Step 2: Convert to fraction form
    386,788.63/580,197.52 = 120,548.11/x
  3. Step 3: Cross multiply
    386,788.63x = 580,197.52 × 120,548.11
  4. Step 4: Simplify right side
    386,788.63x = 69,941,711,561.70
  5. Step 5: Solve for x
    x = 69,941,711,561.70/386,788.63
  6. Step 6: Final answer
    x = 180,826.70

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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.