Home / 439,815.60-658,848.60-408,322.80

Finding the Fourth Proportional to 439,815.60, 658,848.60 and 408,322.80

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Solution

The fourth proportional to 439,815.60, 658,848.60 and 408,322.80 is: 611,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,815.60 : 658,848.60 = 408,322.80 : x
  2. Step 2: Convert to fraction form
    439,815.60/658,848.60 = 408,322.80/x
  3. Step 3: Cross multiply
    439,815.60x = 658,848.60 × 408,322.80
  4. Step 4: Simplify right side
    439,815.60x = 269,022,905,128.08
  5. Step 5: Solve for x
    x = 269,022,905,128.08/439,815.60
  6. Step 6: Final answer
    x = 611,672.04

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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.