Home / 1,145,128.20-1,580,128.22-635,732.20

Finding the Fourth Proportional to 1,145,128.20, 1,580,128.22 and 635,732.20

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Solution

The fourth proportional to 1,145,128.20, 1,580,128.22 and 635,732.20 is: 877,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,128.20 : 1,580,128.22 = 635,732.20 : x
  2. Step 2: Convert to fraction form
    1,145,128.20/1,580,128.22 = 635,732.20/x
  3. Step 3: Cross multiply
    1,145,128.20x = 1,580,128.22 × 635,732.20
  4. Step 4: Simplify right side
    1,145,128.20x = 1,004,538,389,582.68
  5. Step 5: Solve for x
    x = 1,004,538,389,582.68/1,145,128.20
  6. Step 6: Final answer
    x = 877,227.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.