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Finding the Fourth Proportional to 527,203.20, 789,729.60 and 326,908.80

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Solution

The fourth proportional to 527,203.20, 789,729.60 and 326,908.80 is: 489,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,203.20 : 789,729.60 = 326,908.80 : x
  2. Step 2: Convert to fraction form
    527,203.20/789,729.60 = 326,908.80/x
  3. Step 3: Cross multiply
    527,203.20x = 789,729.60 × 326,908.80
  4. Step 4: Simplify right side
    527,203.20x = 258,169,555,860.48
  5. Step 5: Solve for x
    x = 258,169,555,860.48/527,203.20
  6. Step 6: Final answer
    x = 489,696.49

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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.