Home / 752,745.60-1,128,196.80-331,574.40

Finding the Fourth Proportional to 752,745.60, 1,128,196.80 and 331,574.40

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Solution

The fourth proportional to 752,745.60, 1,128,196.80 and 331,574.40 is: 496,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,745.60 : 1,128,196.80 = 331,574.40 : x
  2. Step 2: Convert to fraction form
    752,745.60/1,128,196.80 = 331,574.40/x
  3. Step 3: Cross multiply
    752,745.60x = 1,128,196.80 × 331,574.40
  4. Step 4: Simplify right side
    752,745.60x = 374,081,177,041.92
  5. Step 5: Solve for x
    x = 374,081,177,041.92/752,745.60
  6. Step 6: Final answer
    x = 496,955.65

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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.