Home / 457,159.20-684,426.60-280,012.20

Finding the Fourth Proportional to 457,159.20, 684,426.60 and 280,012.20

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Solution

The fourth proportional to 457,159.20, 684,426.60 and 280,012.20 is: 419,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,159.20 : 684,426.60 = 280,012.20 : x
  2. Step 2: Convert to fraction form
    457,159.20/684,426.60 = 280,012.20/x
  3. Step 3: Cross multiply
    457,159.20x = 684,426.60 × 280,012.20
  4. Step 4: Simplify right side
    457,159.20x = 191,647,798,004.52
  5. Step 5: Solve for x
    x = 191,647,798,004.52/457,159.20
  6. Step 6: Final answer
    x = 419,214.57

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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.