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Finding the Fourth Proportional to 888.84, 1,334.23 and 519.05

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Solution

The fourth proportional to 888.84, 1,334.23 and 519.05 is: 779.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.84 : 1,334.23 = 519.05 : x
  2. Step 2: Convert to fraction form
    888.84/1,334.23 = 519.05/x
  3. Step 3: Cross multiply
    888.84x = 1,334.23 × 519.05
  4. Step 4: Simplify right side
    888.84x = 692,532.08
  5. Step 5: Solve for x
    x = 692,532.08/888.84
  6. Step 6: Final answer
    x = 779.14

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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.