Home / 752,605.60-1,127,986.80-331,434.40

Finding the Fourth Proportional to 752,605.60, 1,127,986.80 and 331,434.40

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Solution

The fourth proportional to 752,605.60, 1,127,986.80 and 331,434.40 is: 496,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,605.60 : 1,127,986.80 = 331,434.40 : x
  2. Step 2: Convert to fraction form
    752,605.60/1,127,986.80 = 331,434.40/x
  3. Step 3: Cross multiply
    752,605.60x = 1,127,986.80 × 331,434.40
  4. Step 4: Simplify right side
    752,605.60x = 373,853,628,265.92
  5. Step 5: Solve for x
    x = 373,853,628,265.92/752,605.60
  6. Step 6: Final answer
    x = 496,745.74

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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.