Home / 753,157.12-1,129,735.45-220,678

Finding the Fourth Proportional to 753,157.12, 1,129,735.45 and 220,678

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Solution

The fourth proportional to 753,157.12, 1,129,735.45 and 220,678 is: 331,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,157.12 : 1,129,735.45 = 220,678 : x
  2. Step 2: Convert to fraction form
    753,157.12/1,129,735.45 = 220,678/x
  3. Step 3: Cross multiply
    753,157.12x = 1,129,735.45 × 220,678
  4. Step 4: Simplify right side
    753,157.12x = 249,307,759,635.10
  5. Step 5: Solve for x
    x = 249,307,759,635.10/753,157.12
  6. Step 6: Final answer
    x = 331,016.93

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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.