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Finding the Fourth Proportional to 527,212.80, 789,652.80 and 433,900.80

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Solution

The fourth proportional to 527,212.80, 789,652.80 and 433,900.80 is: 649,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,212.80 : 789,652.80 = 433,900.80 : x
  2. Step 2: Convert to fraction form
    527,212.80/789,652.80 = 433,900.80/x
  3. Step 3: Cross multiply
    527,212.80x = 789,652.80 × 433,900.80
  4. Step 4: Simplify right side
    527,212.80x = 342,630,981,642.24
  5. Step 5: Solve for x
    x = 342,630,981,642.24/527,212.80
  6. Step 6: Final answer
    x = 649,891.24

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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.