Home / 805,878.21-1,112,114.56-443,329.66

Finding the Fourth Proportional to 805,878.21, 1,112,114.56 and 443,329.66

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Solution

The fourth proportional to 805,878.21, 1,112,114.56 and 443,329.66 is: 611,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,878.21 : 1,112,114.56 = 443,329.66 : x
  2. Step 2: Convert to fraction form
    805,878.21/1,112,114.56 = 443,329.66/x
  3. Step 3: Cross multiply
    805,878.21x = 1,112,114.56 × 443,329.66
  4. Step 4: Simplify right side
    805,878.21x = 493,033,364,623.27
  5. Step 5: Solve for x
    x = 493,033,364,623.27/805,878.21
  6. Step 6: Final answer
    x = 611,796.37

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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.