Home / 1,293,120.30-1,784,435.85-712,230.39

Finding the Fourth Proportional to 1,293,120.30, 1,784,435.85 and 712,230.39

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Solution

The fourth proportional to 1,293,120.30, 1,784,435.85 and 712,230.39 is: 982,839.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,120.30 : 1,784,435.85 = 712,230.39 : x
  2. Step 2: Convert to fraction form
    1,293,120.30/1,784,435.85 = 712,230.39/x
  3. Step 3: Cross multiply
    1,293,120.30x = 1,784,435.85 × 712,230.39
  4. Step 4: Simplify right side
    1,293,120.30x = 1,270,929,441,375.48
  5. Step 5: Solve for x
    x = 1,270,929,441,375.48/1,293,120.30
  6. Step 6: Final answer
    x = 982,839.29

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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.