Home / 1,391,011.80-2,085,999.30-969,034.20

Finding the Fourth Proportional to 1,391,011.80, 2,085,999.30 and 969,034.20

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Solution

The fourth proportional to 1,391,011.80, 2,085,999.30 and 969,034.20 is: 1,453,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,011.80 : 2,085,999.30 = 969,034.20 : x
  2. Step 2: Convert to fraction form
    1,391,011.80/2,085,999.30 = 969,034.20/x
  3. Step 3: Cross multiply
    1,391,011.80x = 2,085,999.30 × 969,034.20
  4. Step 4: Simplify right side
    1,391,011.80x = 2,021,404,662,876.06
  5. Step 5: Solve for x
    x = 2,021,404,662,876.06/1,391,011.80
  6. Step 6: Final answer
    x = 1,453,190.16

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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.