Home / 326,815.20-488,910.60-282,929.40

Finding the Fourth Proportional to 326,815.20, 488,910.60 and 282,929.40

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Solution

The fourth proportional to 326,815.20, 488,910.60 and 282,929.40 is: 423,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,815.20 : 488,910.60 = 282,929.40 : x
  2. Step 2: Convert to fraction form
    326,815.20/488,910.60 = 282,929.40/x
  3. Step 3: Cross multiply
    326,815.20x = 488,910.60 × 282,929.40
  4. Step 4: Simplify right side
    326,815.20x = 138,327,182,711.64
  5. Step 5: Solve for x
    x = 138,327,182,711.64/326,815.20
  6. Step 6: Final answer
    x = 423,258.11

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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.