Home / 457,327.20-684,678.60-280,180.20

Finding the Fourth Proportional to 457,327.20, 684,678.60 and 280,180.20

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Solution

The fourth proportional to 457,327.20, 684,678.60 and 280,180.20 is: 419,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,327.20 : 684,678.60 = 280,180.20 : x
  2. Step 2: Convert to fraction form
    457,327.20/684,678.60 = 280,180.20/x
  3. Step 3: Cross multiply
    457,327.20x = 684,678.60 × 280,180.20
  4. Step 4: Simplify right side
    457,327.20x = 191,833,387,083.72
  5. Step 5: Solve for x
    x = 191,833,387,083.72/457,327.20
  6. Step 6: Final answer
    x = 419,466.38

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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.