Home / 1,028,004.60-1,542,006.90-280,049.40

Finding the Fourth Proportional to 1,028,004.60, 1,542,006.90 and 280,049.40

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Solution

The fourth proportional to 1,028,004.60, 1,542,006.90 and 280,049.40 is: 420,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,004.60 : 1,542,006.90 = 280,049.40 : x
  2. Step 2: Convert to fraction form
    1,028,004.60/1,542,006.90 = 280,049.40/x
  3. Step 3: Cross multiply
    1,028,004.60x = 1,542,006.90 × 280,049.40
  4. Step 4: Simplify right side
    1,028,004.60x = 431,838,107,140.86
  5. Step 5: Solve for x
    x = 431,838,107,140.86/1,028,004.60
  6. Step 6: Final answer
    x = 420,074.10

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Similar ratio
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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.