Home / 394,479.60-591,719.40-328,869.60

Finding the Fourth Proportional to 394,479.60, 591,719.40 and 328,869.60

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Solution

The fourth proportional to 394,479.60, 591,719.40 and 328,869.60 is: 493,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,479.60 : 591,719.40 = 328,869.60 : x
  2. Step 2: Convert to fraction form
    394,479.60/591,719.40 = 328,869.60/x
  3. Step 3: Cross multiply
    394,479.60x = 591,719.40 × 328,869.60
  4. Step 4: Simplify right side
    394,479.60x = 194,598,522,390.24
  5. Step 5: Solve for x
    x = 194,598,522,390.24/394,479.60
  6. Step 6: Final answer
    x = 493,304.40

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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.