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Finding the Fourth Proportional to 527,084.64, 789,084.72 and 326,800.80

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Solution

The fourth proportional to 527,084.64, 789,084.72 and 326,800.80 is: 489,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,084.64 : 789,084.72 = 326,800.80 : x
  2. Step 2: Convert to fraction form
    527,084.64/789,084.72 = 326,800.80/x
  3. Step 3: Cross multiply
    527,084.64x = 789,084.72 × 326,800.80
  4. Step 4: Simplify right side
    527,084.64x = 257,873,517,763.78
  5. Step 5: Solve for x
    x = 257,873,517,763.78/527,084.64
  6. Step 6: Final answer
    x = 489,244.99

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1.5x scale

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.