Home / 729,000.19-1,093,389.38-279,932.55

Finding the Fourth Proportional to 729,000.19, 1,093,389.38 and 279,932.55

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Solution

The fourth proportional to 729,000.19, 1,093,389.38 and 279,932.55 is: 419,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,000.19 : 1,093,389.38 = 279,932.55 : x
  2. Step 2: Convert to fraction form
    729,000.19/1,093,389.38 = 279,932.55/x
  3. Step 3: Cross multiply
    729,000.19x = 1,093,389.38 × 279,932.55
  4. Step 4: Simplify right side
    729,000.19x = 306,075,277,286.32
  5. Step 5: Solve for x
    x = 306,075,277,286.32/729,000.19
  6. Step 6: Final answer
    x = 419,856.24

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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.