Home / 753,171.78-1,129,766.80-220,703.62

Finding the Fourth Proportional to 753,171.78, 1,129,766.80 and 220,703.62

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Solution

The fourth proportional to 753,171.78, 1,129,766.80 and 220,703.62 is: 331,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,171.78 : 1,129,766.80 = 220,703.62 : x
  2. Step 2: Convert to fraction form
    753,171.78/1,129,766.80 = 220,703.62/x
  3. Step 3: Cross multiply
    753,171.78x = 1,129,766.80 × 220,703.62
  4. Step 4: Simplify right side
    753,171.78x = 249,343,622,515.82
  5. Step 5: Solve for x
    x = 249,343,622,515.82/753,171.78
  6. Step 6: Final answer
    x = 331,058.11

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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.