Home / 1,143,001.12-1,711,138.36-762,979.26

Finding the Fourth Proportional to 1,143,001.12, 1,711,138.36 and 762,979.26

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Solution

The fourth proportional to 1,143,001.12, 1,711,138.36 and 762,979.26 is: 1,142,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,001.12 : 1,711,138.36 = 762,979.26 : x
  2. Step 2: Convert to fraction form
    1,143,001.12/1,711,138.36 = 762,979.26/x
  3. Step 3: Cross multiply
    1,143,001.12x = 1,711,138.36 × 762,979.26
  4. Step 4: Simplify right side
    1,143,001.12x = 1,305,563,079,670.41
  5. Step 5: Solve for x
    x = 1,305,563,079,670.41/1,143,001.12
  6. Step 6: Final answer
    x = 1,142,223.80

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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.