Home / 1,515,319.30-2,091,498.06-871,112.80

Finding the Fourth Proportional to 1,515,319.30, 2,091,498.06 and 871,112.80

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Solution

The fourth proportional to 1,515,319.30, 2,091,498.06 and 871,112.80 is: 1,202,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,319.30 : 2,091,498.06 = 871,112.80 : x
  2. Step 2: Convert to fraction form
    1,515,319.30/2,091,498.06 = 871,112.80/x
  3. Step 3: Cross multiply
    1,515,319.30x = 2,091,498.06 × 871,112.80
  4. Step 4: Simplify right side
    1,515,319.30x = 1,821,930,731,241.17
  5. Step 5: Solve for x
    x = 1,821,930,731,241.17/1,515,319.30
  6. Step 6: Final answer
    x = 1,202,341.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.