Home / 664,240.90-996,458.55-348,721.60

Finding the Fourth Proportional to 664,240.90, 996,458.55 and 348,721.60

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Solution

The fourth proportional to 664,240.90, 996,458.55 and 348,721.60 is: 523,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,240.90 : 996,458.55 = 348,721.60 : x
  2. Step 2: Convert to fraction form
    664,240.90/996,458.55 = 348,721.60/x
  3. Step 3: Cross multiply
    664,240.90x = 996,458.55 × 348,721.60
  4. Step 4: Simplify right side
    664,240.90x = 347,486,619,889.68
  5. Step 5: Solve for x
    x = 347,486,619,889.68/664,240.90
  6. Step 6: Final answer
    x = 523,133.43

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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.