Home / 1,240,168.20-1,855,586.70-820,264.20

Finding the Fourth Proportional to 1,240,168.20, 1,855,586.70 and 820,264.20

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Solution

The fourth proportional to 1,240,168.20, 1,855,586.70 and 820,264.20 is: 1,227,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,168.20 : 1,855,586.70 = 820,264.20 : x
  2. Step 2: Convert to fraction form
    1,240,168.20/1,855,586.70 = 820,264.20/x
  3. Step 3: Cross multiply
    1,240,168.20x = 1,855,586.70 × 820,264.20
  4. Step 4: Simplify right side
    1,240,168.20x = 1,522,071,340,006.14
  5. Step 5: Solve for x
    x = 1,522,071,340,006.14/1,240,168.20
  6. Step 6: Final answer
    x = 1,227,310.41

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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.