Home / 781,119.05-1,171,655.89-248,672.03

Finding the Fourth Proportional to 781,119.05, 1,171,655.89 and 248,672.03

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Solution

The fourth proportional to 781,119.05, 1,171,655.89 and 248,672.03 is: 373,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,119.05 : 1,171,655.89 = 248,672.03 : x
  2. Step 2: Convert to fraction form
    781,119.05/1,171,655.89 = 248,672.03/x
  3. Step 3: Cross multiply
    781,119.05x = 1,171,655.89 × 248,672.03
  4. Step 4: Simplify right side
    781,119.05x = 291,358,042,147.80
  5. Step 5: Solve for x
    x = 291,358,042,147.80/781,119.05
  6. Step 6: Final answer
    x = 373,000.82

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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.