Home / 827,105.20-1,240,830.60-266,196.40

Finding the Fourth Proportional to 827,105.20, 1,240,830.60 and 266,196.40

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Solution

The fourth proportional to 827,105.20, 1,240,830.60 and 266,196.40 is: 399,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,105.20 : 1,240,830.60 = 266,196.40 : x
  2. Step 2: Convert to fraction form
    827,105.20/1,240,830.60 = 266,196.40/x
  3. Step 3: Cross multiply
    827,105.20x = 1,240,830.60 × 266,196.40
  4. Step 4: Simplify right side
    827,105.20x = 330,304,638,729.84
  5. Step 5: Solve for x
    x = 330,304,638,729.84/827,105.20
  6. Step 6: Final answer
    x = 399,350.21

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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.