Home / 1,172,122.40-1,758,766.80-667,071.20

Finding the Fourth Proportional to 1,172,122.40, 1,758,766.80 and 667,071.20

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Solution

The fourth proportional to 1,172,122.40, 1,758,766.80 and 667,071.20 is: 1,000,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,122.40 : 1,758,766.80 = 667,071.20 : x
  2. Step 2: Convert to fraction form
    1,172,122.40/1,758,766.80 = 667,071.20/x
  3. Step 3: Cross multiply
    1,172,122.40x = 1,758,766.80 × 667,071.20
  4. Step 4: Simplify right side
    1,172,122.40x = 1,173,222,679,796.16
  5. Step 5: Solve for x
    x = 1,173,222,679,796.16/1,172,122.40
  6. Step 6: Final answer
    x = 1,000,938.71

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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.