Home / 811,858.56-1,120,341.84-449,297.52

Finding the Fourth Proportional to 811,858.56, 1,120,341.84 and 449,297.52

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Solution

The fourth proportional to 811,858.56, 1,120,341.84 and 449,297.52 is: 620,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,858.56 : 1,120,341.84 = 449,297.52 : x
  2. Step 2: Convert to fraction form
    811,858.56/1,120,341.84 = 449,297.52/x
  3. Step 3: Cross multiply
    811,858.56x = 1,120,341.84 × 449,297.52
  4. Step 4: Simplify right side
    811,858.56x = 503,366,810,264.24
  5. Step 5: Solve for x
    x = 503,366,810,264.24/811,858.56
  6. Step 6: Final answer
    x = 620,017.86

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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.