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Finding the Fourth Proportional to 445,068.70, 667,603.05 and 326,095.90

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Solution

The fourth proportional to 445,068.70, 667,603.05 and 326,095.90 is: 489,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,068.70 : 667,603.05 = 326,095.90 : x
  2. Step 2: Convert to fraction form
    445,068.70/667,603.05 = 326,095.90/x
  3. Step 3: Cross multiply
    445,068.70x = 667,603.05 × 326,095.90
  4. Step 4: Simplify right side
    445,068.70x = 217,702,617,432.50
  5. Step 5: Solve for x
    x = 217,702,617,432.50/445,068.70
  6. Step 6: Final answer
    x = 489,143.85

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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.