Home / 305,080.12-457,568.19-80,442.79

Finding the Fourth Proportional to 305,080.12, 457,568.19 and 80,442.79

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Solution

The fourth proportional to 305,080.12, 457,568.19 and 80,442.79 is: 120,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,080.12 : 457,568.19 = 80,442.79 : x
  2. Step 2: Convert to fraction form
    305,080.12/457,568.19 = 80,442.79/x
  3. Step 3: Cross multiply
    305,080.12x = 457,568.19 × 80,442.79
  4. Step 4: Simplify right side
    305,080.12x = 36,808,060,674.93
  5. Step 5: Solve for x
    x = 36,808,060,674.93/305,080.12
  6. Step 6: Final answer
    x = 120,650.47

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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.