Home / 329,729.20-493,281.60-285,843.40

Finding the Fourth Proportional to 329,729.20, 493,281.60 and 285,843.40

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Solution

The fourth proportional to 329,729.20, 493,281.60 and 285,843.40 is: 427,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,729.20 : 493,281.60 = 285,843.40 : x
  2. Step 2: Convert to fraction form
    329,729.20/493,281.60 = 285,843.40/x
  3. Step 3: Cross multiply
    329,729.20x = 493,281.60 × 285,843.40
  4. Step 4: Simplify right side
    329,729.20x = 141,001,289,701.44
  5. Step 5: Solve for x
    x = 141,001,289,701.44/329,729.20
  6. Step 6: Final answer
    x = 427,627.55

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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.