Home / 1,515,432.21-2,091,266.81-827,109

Finding the Fourth Proportional to 1,515,432.21, 2,091,266.81 and 827,109

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Solution

The fourth proportional to 1,515,432.21, 2,091,266.81 and 827,109 is: 1,141,394.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,432.21 : 2,091,266.81 = 827,109 : x
  2. Step 2: Convert to fraction form
    1,515,432.21/2,091,266.81 = 827,109/x
  3. Step 3: Cross multiply
    1,515,432.21x = 2,091,266.81 × 827,109
  4. Step 4: Simplify right side
    1,515,432.21x = 1,729,705,595,816.75
  5. Step 5: Solve for x
    x = 1,729,705,595,816.75/1,515,432.21
  6. Step 6: Final answer
    x = 1,141,394.24

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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.