Home / 663,091.60-993,981.30-325,856.20

Finding the Fourth Proportional to 663,091.60, 993,981.30 and 325,856.20

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Solution

The fourth proportional to 663,091.60, 993,981.30 and 325,856.20 is: 488,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,091.60 : 993,981.30 = 325,856.20 : x
  2. Step 2: Convert to fraction form
    663,091.60/993,981.30 = 325,856.20/x
  3. Step 3: Cross multiply
    663,091.60x = 993,981.30 × 325,856.20
  4. Step 4: Simplify right side
    663,091.60x = 323,894,969,289.06
  5. Step 5: Solve for x
    x = 323,894,969,289.06/663,091.60
  6. Step 6: Final answer
    x = 488,461.88

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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.