Home / 752,615.20-1,128,922.80-353,531.44

Finding the Fourth Proportional to 752,615.20, 1,128,922.80 and 353,531.44

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Solution

The fourth proportional to 752,615.20, 1,128,922.80 and 353,531.44 is: 530,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,615.20 : 1,128,922.80 = 353,531.44 : x
  2. Step 2: Convert to fraction form
    752,615.20/1,128,922.80 = 353,531.44/x
  3. Step 3: Cross multiply
    752,615.20x = 1,128,922.80 × 353,531.44
  4. Step 4: Simplify right side
    752,615.20x = 399,109,703,132.83
  5. Step 5: Solve for x
    x = 399,109,703,132.83/752,615.20
  6. Step 6: Final answer
    x = 530,297.16

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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.