Home / 457,163.20-684,432.60-280,016.20

Finding the Fourth Proportional to 457,163.20, 684,432.60 and 280,016.20

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Solution

The fourth proportional to 457,163.20, 684,432.60 and 280,016.20 is: 419,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,163.20 : 684,432.60 = 280,016.20 : x
  2. Step 2: Convert to fraction form
    457,163.20/684,432.60 = 280,016.20/x
  3. Step 3: Cross multiply
    457,163.20x = 684,432.60 × 280,016.20
  4. Step 4: Simplify right side
    457,163.20x = 191,652,215,808.12
  5. Step 5: Solve for x
    x = 191,652,215,808.12/457,163.20
  6. Step 6: Final answer
    x = 419,220.57

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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.