Home / 454,629.20-681,943.80-370,648.40

Finding the Fourth Proportional to 454,629.20, 681,943.80 and 370,648.40

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Solution

The fourth proportional to 454,629.20, 681,943.80 and 370,648.40 is: 555,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,629.20 : 681,943.80 = 370,648.40 : x
  2. Step 2: Convert to fraction form
    454,629.20/681,943.80 = 370,648.40/x
  3. Step 3: Cross multiply
    454,629.20x = 681,943.80 × 370,648.40
  4. Step 4: Simplify right side
    454,629.20x = 252,761,378,359.92
  5. Step 5: Solve for x
    x = 252,761,378,359.92/454,629.20
  6. Step 6: Final answer
    x = 555,972.60

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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.