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Finding the Fourth Proportional to 889.04, 1,334.24 and 610.74

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Solution

The fourth proportional to 889.04, 1,334.24 and 610.74 is: 916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.04 : 1,334.24 = 610.74 : x
  2. Step 2: Convert to fraction form
    889.04/1,334.24 = 610.74/x
  3. Step 3: Cross multiply
    889.04x = 1,334.24 × 610.74
  4. Step 4: Simplify right side
    889.04x = 814,873.74
  5. Step 5: Solve for x
    x = 814,873.74/889.04
  6. Step 6: Final answer
    x = 916.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.