Home / 1,121,452.10-1,680,173.40-682,472.60

Finding the Fourth Proportional to 1,121,452.10, 1,680,173.40 and 682,472.60

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Solution

The fourth proportional to 1,121,452.10, 1,680,173.40 and 682,472.60 is: 1,022,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,452.10 : 1,680,173.40 = 682,472.60 : x
  2. Step 2: Convert to fraction form
    1,121,452.10/1,680,173.40 = 682,472.60/x
  3. Step 3: Cross multiply
    1,121,452.10x = 1,680,173.40 × 682,472.60
  4. Step 4: Simplify right side
    1,121,452.10x = 1,146,672,308,748.84
  5. Step 5: Solve for x
    x = 1,146,672,308,748.84/1,121,452.10
  6. Step 6: Final answer
    x = 1,022,488.89

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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.