Home / 1,127,878.20-1,691,817.30-811,654.20

Finding the Fourth Proportional to 1,127,878.20, 1,691,817.30 and 811,654.20

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Solution

The fourth proportional to 1,127,878.20, 1,691,817.30 and 811,654.20 is: 1,217,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,878.20 : 1,691,817.30 = 811,654.20 : x
  2. Step 2: Convert to fraction form
    1,127,878.20/1,691,817.30 = 811,654.20/x
  3. Step 3: Cross multiply
    1,127,878.20x = 1,691,817.30 × 811,654.20
  4. Step 4: Simplify right side
    1,127,878.20x = 1,373,170,617,177.66
  5. Step 5: Solve for x
    x = 1,373,170,617,177.66/1,127,878.20
  6. Step 6: Final answer
    x = 1,217,481.30

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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.