Home / 638,923.52-881,716.92-352,439.48

Finding the Fourth Proportional to 638,923.52, 881,716.92 and 352,439.48

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Solution

The fourth proportional to 638,923.52, 881,716.92 and 352,439.48 is: 486,367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,923.52 : 881,716.92 = 352,439.48 : x
  2. Step 2: Convert to fraction form
    638,923.52/881,716.92 = 352,439.48/x
  3. Step 3: Cross multiply
    638,923.52x = 881,716.92 × 352,439.48
  4. Step 4: Simplify right side
    638,923.52x = 310,751,852,792.00
  5. Step 5: Solve for x
    x = 310,751,852,792.00/638,923.52
  6. Step 6: Final answer
    x = 486,367.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.