Home / 1,021,175.90-1,531,821.46-311,227.10

Finding the Fourth Proportional to 1,021,175.90, 1,531,821.46 and 311,227.10

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Solution

The fourth proportional to 1,021,175.90, 1,531,821.46 and 311,227.10 is: 466,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,175.90 : 1,531,821.46 = 311,227.10 : x
  2. Step 2: Convert to fraction form
    1,021,175.90/1,531,821.46 = 311,227.10/x
  3. Step 3: Cross multiply
    1,021,175.90x = 1,531,821.46 × 311,227.10
  4. Step 4: Simplify right side
    1,021,175.90x = 476,744,350,713.57
  5. Step 5: Solve for x
    x = 476,744,350,713.57/1,021,175.90
  6. Step 6: Final answer
    x = 466,858.21

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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.