Home / 753,144.38-1,129,725.73-220,676.20

Finding the Fourth Proportional to 753,144.38, 1,129,725.73 and 220,676.20

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Solution

The fourth proportional to 753,144.38, 1,129,725.73 and 220,676.20 is: 331,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,144.38 : 1,129,725.73 = 220,676.20 : x
  2. Step 2: Convert to fraction form
    753,144.38/1,129,725.73 = 220,676.20/x
  3. Step 3: Cross multiply
    753,144.38x = 1,129,725.73 × 220,676.20
  4. Step 4: Simplify right side
    753,144.38x = 249,303,578,590.16
  5. Step 5: Solve for x
    x = 249,303,578,590.16/753,144.38
  6. Step 6: Final answer
    x = 331,016.98

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1.5x scale

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.