Home / 1,391,381.80-2,086,554.30-969,404.20

Finding the Fourth Proportional to 1,391,381.80, 2,086,554.30 and 969,404.20

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Solution

The fourth proportional to 1,391,381.80, 2,086,554.30 and 969,404.20 is: 1,453,745.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,381.80 : 2,086,554.30 = 969,404.20 : x
  2. Step 2: Convert to fraction form
    1,391,381.80/2,086,554.30 = 969,404.20/x
  3. Step 3: Cross multiply
    1,391,381.80x = 2,086,554.30 × 969,404.20
  4. Step 4: Simplify right side
    1,391,381.80x = 2,022,714,501,948.06
  5. Step 5: Solve for x
    x = 2,022,714,501,948.06/1,391,381.80
  6. Step 6: Final answer
    x = 1,453,745.12

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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.