Home / 811,847.07-1,120,351.13-449,295.93

Finding the Fourth Proportional to 811,847.07, 1,120,351.13 and 449,295.93

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Solution

The fourth proportional to 811,847.07, 1,120,351.13 and 449,295.93 is: 620,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,847.07 : 1,120,351.13 = 449,295.93 : x
  2. Step 2: Convert to fraction form
    811,847.07/1,120,351.13 = 449,295.93/x
  3. Step 3: Cross multiply
    811,847.07x = 1,120,351.13 × 449,295.93
  4. Step 4: Simplify right side
    811,847.07x = 503,369,200,633.42
  5. Step 5: Solve for x
    x = 503,369,200,633.42/811,847.07
  6. Step 6: Final answer
    x = 620,029.58

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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.