Home / 812,329.01-1,121,089.25-449,752.87

Finding the Fourth Proportional to 812,329.01, 1,121,089.25 and 449,752.87

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Solution

The fourth proportional to 812,329.01, 1,121,089.25 and 449,752.87 is: 620,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,329.01 : 1,121,089.25 = 449,752.87 : x
  2. Step 2: Convert to fraction form
    812,329.01/1,121,089.25 = 449,752.87/x
  3. Step 3: Cross multiply
    812,329.01x = 1,121,089.25 × 449,752.87
  4. Step 4: Simplify right side
    812,329.01x = 504,213,099,859.44
  5. Step 5: Solve for x
    x = 504,213,099,859.44/812,329.01
  6. Step 6: Final answer
    x = 620,700.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.