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Finding the Fourth Proportional to 326,037.70, 489,056.55 and 323,964.10

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Solution

The fourth proportional to 326,037.70, 489,056.55 and 323,964.10 is: 485,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,037.70 : 489,056.55 = 323,964.10 : x
  2. Step 2: Convert to fraction form
    326,037.70/489,056.55 = 323,964.10/x
  3. Step 3: Cross multiply
    326,037.70x = 489,056.55 × 323,964.10
  4. Step 4: Simplify right side
    326,037.70x = 158,436,765,069.86
  5. Step 5: Solve for x
    x = 158,436,765,069.86/326,037.70
  6. Step 6: Final answer
    x = 485,946.15

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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.