Home / 783,119.80-1,173,902.10-361,660.60

Finding the Fourth Proportional to 783,119.80, 1,173,902.10 and 361,660.60

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Solution

The fourth proportional to 783,119.80, 1,173,902.10 and 361,660.60 is: 542,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,119.80 : 1,173,902.10 = 361,660.60 : x
  2. Step 2: Convert to fraction form
    783,119.80/1,173,902.10 = 361,660.60/x
  3. Step 3: Cross multiply
    783,119.80x = 1,173,902.10 × 361,660.60
  4. Step 4: Simplify right side
    783,119.80x = 424,554,137,827.26
  5. Step 5: Solve for x
    x = 424,554,137,827.26/783,119.80
  6. Step 6: Final answer
    x = 542,131.79

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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.