Home / 817,029.40-1,224,231.90-769,790.20

Finding the Fourth Proportional to 817,029.40, 1,224,231.90 and 769,790.20

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Solution

The fourth proportional to 817,029.40, 1,224,231.90 and 769,790.20 is: 1,153,448.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,029.40 : 1,224,231.90 = 769,790.20 : x
  2. Step 2: Convert to fraction form
    817,029.40/1,224,231.90 = 769,790.20/x
  3. Step 3: Cross multiply
    817,029.40x = 1,224,231.90 × 769,790.20
  4. Step 4: Simplify right side
    817,029.40x = 942,401,719,147.38
  5. Step 5: Solve for x
    x = 942,401,719,147.38/817,029.40
  6. Step 6: Final answer
    x = 1,153,448.97

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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.