Home / 1,490,520.78-2,235,817.92-543,891.20

Finding the Fourth Proportional to 1,490,520.78, 2,235,817.92 and 543,891.20

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Solution

The fourth proportional to 1,490,520.78, 2,235,817.92 and 543,891.20 is: 815,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,520.78 : 2,235,817.92 = 543,891.20 : x
  2. Step 2: Convert to fraction form
    1,490,520.78/2,235,817.92 = 543,891.20/x
  3. Step 3: Cross multiply
    1,490,520.78x = 2,235,817.92 × 543,891.20
  4. Step 4: Simplify right side
    1,490,520.78x = 1,216,041,680,311.21
  5. Step 5: Solve for x
    x = 1,216,041,680,311.21/1,490,520.78
  6. Step 6: Final answer
    x = 815,850.20

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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.