Home / 752,185.89-1,128,278.72-352,826.66

Finding the Fourth Proportional to 752,185.89, 1,128,278.72 and 352,826.66

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Solution

The fourth proportional to 752,185.89, 1,128,278.72 and 352,826.66 is: 529,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,185.89 : 1,128,278.72 = 352,826.66 : x
  2. Step 2: Convert to fraction form
    752,185.89/1,128,278.72 = 352,826.66/x
  3. Step 3: Cross multiply
    752,185.89x = 1,128,278.72 × 352,826.66
  4. Step 4: Simplify right side
    752,185.89x = 398,086,813,662.40
  5. Step 5: Solve for x
    x = 398,086,813,662.40/752,185.89
  6. Step 6: Final answer
    x = 529,239.94

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Double scale
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Similar ratio
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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.