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Finding the Fourth Proportional to 532,334.40, 798,728.40 and 279,808.80

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Solution

The fourth proportional to 532,334.40, 798,728.40 and 279,808.80 is: 419,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,334.40 : 798,728.40 = 279,808.80 : x
  2. Step 2: Convert to fraction form
    532,334.40/798,728.40 = 279,808.80/x
  3. Step 3: Cross multiply
    532,334.40x = 798,728.40 × 279,808.80
  4. Step 4: Simplify right side
    532,334.40x = 223,491,235,129.92
  5. Step 5: Solve for x
    x = 223,491,235,129.92/532,334.40
  6. Step 6: Final answer
    x = 419,832.41

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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.