Home / 1,143,000.12-1,711,136.86-762,978.26

Finding the Fourth Proportional to 1,143,000.12, 1,711,136.86 and 762,978.26

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Solution

The fourth proportional to 1,143,000.12, 1,711,136.86 and 762,978.26 is: 1,142,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,000.12 : 1,711,136.86 = 762,978.26 : x
  2. Step 2: Convert to fraction form
    1,143,000.12/1,711,136.86 = 762,978.26/x
  3. Step 3: Cross multiply
    1,143,000.12x = 1,711,136.86 × 762,978.26
  4. Step 4: Simplify right side
    1,143,000.12x = 1,305,560,224,064.66
  5. Step 5: Solve for x
    x = 1,305,560,224,064.66/1,143,000.12
  6. Step 6: Final answer
    x = 1,142,222.30

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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.