Home / 1,240,169.20-1,855,588.20-820,265.20

Finding the Fourth Proportional to 1,240,169.20, 1,855,588.20 and 820,265.20

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Solution

The fourth proportional to 1,240,169.20, 1,855,588.20 and 820,265.20 is: 1,227,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,169.20 : 1,855,588.20 = 820,265.20 : x
  2. Step 2: Convert to fraction form
    1,240,169.20/1,855,588.20 = 820,265.20/x
  3. Step 3: Cross multiply
    1,240,169.20x = 1,855,588.20 × 820,265.20
  4. Step 4: Simplify right side
    1,240,169.20x = 1,522,074,425,990.64
  5. Step 5: Solve for x
    x = 1,522,074,425,990.64/1,240,169.20
  6. Step 6: Final answer
    x = 1,227,311.91

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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.