Home / 1,391,181.60-2,086,772.40-1,202,224.80

Finding the Fourth Proportional to 1,391,181.60, 2,086,772.40 and 1,202,224.80

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Solution

The fourth proportional to 1,391,181.60, 2,086,772.40 and 1,202,224.80 is: 1,803,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,181.60 : 2,086,772.40 = 1,202,224.80 : x
  2. Step 2: Convert to fraction form
    1,391,181.60/2,086,772.40 = 1,202,224.80/x
  3. Step 3: Cross multiply
    1,391,181.60x = 2,086,772.40 × 1,202,224.80
  4. Step 4: Simplify right side
    1,391,181.60x = 2,508,769,531,235.52
  5. Step 5: Solve for x
    x = 2,508,769,531,235.52/1,391,181.60
  6. Step 6: Final answer
    x = 1,803,337.20

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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.