Home / 650,660.04-897,915.38-378,886.41

Finding the Fourth Proportional to 650,660.04, 897,915.38 and 378,886.41

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Solution

The fourth proportional to 650,660.04, 897,915.38 and 378,886.41 is: 522,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,660.04 : 897,915.38 = 378,886.41 : x
  2. Step 2: Convert to fraction form
    650,660.04/897,915.38 = 378,886.41/x
  3. Step 3: Cross multiply
    650,660.04x = 897,915.38 × 378,886.41
  4. Step 4: Simplify right side
    650,660.04x = 340,207,932,917.55
  5. Step 5: Solve for x
    x = 340,207,932,917.55/650,660.04
  6. Step 6: Final answer
    x = 522,865.88

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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.