Home / 809,022.60-1,213,242.30-409,530.60

Finding the Fourth Proportional to 809,022.60, 1,213,242.30 and 409,530.60

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Solution

The fourth proportional to 809,022.60, 1,213,242.30 and 409,530.60 is: 614,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,022.60 : 1,213,242.30 = 409,530.60 : x
  2. Step 2: Convert to fraction form
    809,022.60/1,213,242.30 = 409,530.60/x
  3. Step 3: Cross multiply
    809,022.60x = 1,213,242.30 × 409,530.60
  4. Step 4: Simplify right side
    809,022.60x = 496,859,847,064.38
  5. Step 5: Solve for x
    x = 496,859,847,064.38/809,022.60
  6. Step 6: Final answer
    x = 614,148.29

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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.