Home / 807,636.80-1,209,122.40-492,708.80

Finding the Fourth Proportional to 807,636.80, 1,209,122.40 and 492,708.80

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Solution

The fourth proportional to 807,636.80, 1,209,122.40 and 492,708.80 is: 737,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,636.80 : 1,209,122.40 = 492,708.80 : x
  2. Step 2: Convert to fraction form
    807,636.80/1,209,122.40 = 492,708.80/x
  3. Step 3: Cross multiply
    807,636.80x = 1,209,122.40 × 492,708.80
  4. Step 4: Simplify right side
    807,636.80x = 595,745,246,757.12
  5. Step 5: Solve for x
    x = 595,745,246,757.12/807,636.80
  6. Step 6: Final answer
    x = 737,640.05

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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.