Home / 811,846.95-1,120,350.96-449,295.81

Finding the Fourth Proportional to 811,846.95, 1,120,350.96 and 449,295.81

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Solution

The fourth proportional to 811,846.95, 1,120,350.96 and 449,295.81 is: 620,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,846.95 : 1,120,350.96 = 449,295.81 : x
  2. Step 2: Convert to fraction form
    811,846.95/1,120,350.96 = 449,295.81/x
  3. Step 3: Cross multiply
    811,846.95x = 1,120,350.96 × 449,295.81
  4. Step 4: Simplify right side
    811,846.95x = 503,368,984,209.24
  5. Step 5: Solve for x
    x = 503,368,984,209.24/811,846.95
  6. Step 6: Final answer
    x = 620,029.41

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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.