Home / 816,182.80-1,223,399.40-310,548.40

Finding the Fourth Proportional to 816,182.80, 1,223,399.40 and 310,548.40

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Solution

The fourth proportional to 816,182.80, 1,223,399.40 and 310,548.40 is: 465,489.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,182.80 : 1,223,399.40 = 310,548.40 : x
  2. Step 2: Convert to fraction form
    816,182.80/1,223,399.40 = 310,548.40/x
  3. Step 3: Cross multiply
    816,182.80x = 1,223,399.40 × 310,548.40
  4. Step 4: Simplify right side
    816,182.80x = 379,924,726,230.96
  5. Step 5: Solve for x
    x = 379,924,726,230.96/816,182.80
  6. Step 6: Final answer
    x = 465,489.75

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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.