Home / 1,022,877.20-1,412,175.33-909,385.88

Finding the Fourth Proportional to 1,022,877.20, 1,412,175.33 and 909,385.88

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Solution

The fourth proportional to 1,022,877.20, 1,412,175.33 and 909,385.88 is: 1,255,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,877.20 : 1,412,175.33 = 909,385.88 : x
  2. Step 2: Convert to fraction form
    1,022,877.20/1,412,175.33 = 909,385.88/x
  3. Step 3: Cross multiply
    1,022,877.20x = 1,412,175.33 × 909,385.88
  4. Step 4: Simplify right side
    1,022,877.20x = 1,284,212,298,125.46
  5. Step 5: Solve for x
    x = 1,284,212,298,125.46/1,022,877.20
  6. Step 6: Final answer
    x = 1,255,490.19

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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.