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Finding the Fourth Proportional to 889.21, 1,333.27 and 524.08

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Solution

The fourth proportional to 889.21, 1,333.27 and 524.08 is: 785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.21 : 1,333.27 = 524.08 : x
  2. Step 2: Convert to fraction form
    889.21/1,333.27 = 524.08/x
  3. Step 3: Cross multiply
    889.21x = 1,333.27 × 524.08
  4. Step 4: Simplify right side
    889.21x = 698,740.14
  5. Step 5: Solve for x
    x = 698,740.14/889.21
  6. Step 6: Final answer
    x = 785.80

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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.