Home / 1,078,255.20-1,617,106.02-319,917.27

Finding the Fourth Proportional to 1,078,255.20, 1,617,106.02 and 319,917.27

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Solution

The fourth proportional to 1,078,255.20, 1,617,106.02 and 319,917.27 is: 479,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,255.20 : 1,617,106.02 = 319,917.27 : x
  2. Step 2: Convert to fraction form
    1,078,255.20/1,617,106.02 = 319,917.27/x
  3. Step 3: Cross multiply
    1,078,255.20x = 1,617,106.02 × 319,917.27
  4. Step 4: Simplify right side
    1,078,255.20x = 517,340,143,218.97
  5. Step 5: Solve for x
    x = 517,340,143,218.97/1,078,255.20
  6. Step 6: Final answer
    x = 479,793.78

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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.