Home / 752,209.80-1,128,365.90-219,729.80

Finding the Fourth Proportional to 752,209.80, 1,128,365.90 and 219,729.80

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Solution

The fourth proportional to 752,209.80, 1,128,365.90 and 219,729.80 is: 329,609.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,209.80 : 1,128,365.90 = 219,729.80 : x
  2. Step 2: Convert to fraction form
    752,209.80/1,128,365.90 = 219,729.80/x
  3. Step 3: Cross multiply
    752,209.80x = 1,128,365.90 × 219,729.80
  4. Step 4: Simplify right side
    752,209.80x = 247,935,613,533.82
  5. Step 5: Solve for x
    x = 247,935,613,533.82/752,209.80
  6. Step 6: Final answer
    x = 329,609.66

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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.