Home / 753,146.82-1,129,719.87-220,667.58

Finding the Fourth Proportional to 753,146.82, 1,129,719.87 and 220,667.58

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Solution

The fourth proportional to 753,146.82, 1,129,719.87 and 220,667.58 is: 331,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,146.82 : 1,129,719.87 = 220,667.58 : x
  2. Step 2: Convert to fraction form
    753,146.82/1,129,719.87 = 220,667.58/x
  3. Step 3: Cross multiply
    753,146.82x = 1,129,719.87 × 220,667.58
  4. Step 4: Simplify right side
    753,146.82x = 249,292,549,790.82
  5. Step 5: Solve for x
    x = 249,292,549,790.82/753,146.82
  6. Step 6: Final answer
    x = 331,001.26

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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.