Home / 1,182,117.20-1,773,175.80-821,310.80

Finding the Fourth Proportional to 1,182,117.20, 1,773,175.80 and 821,310.80

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Solution

The fourth proportional to 1,182,117.20, 1,773,175.80 and 821,310.80 is: 1,231,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,117.20 : 1,773,175.80 = 821,310.80 : x
  2. Step 2: Convert to fraction form
    1,182,117.20/1,773,175.80 = 821,310.80/x
  3. Step 3: Cross multiply
    1,182,117.20x = 1,773,175.80 × 821,310.80
  4. Step 4: Simplify right side
    1,182,117.20x = 1,456,328,434,838.64
  5. Step 5: Solve for x
    x = 1,456,328,434,838.64/1,182,117.20
  6. Step 6: Final answer
    x = 1,231,966.20

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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.