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Finding the Fourth Proportional to 885.34, 1,329.03 and 475.27

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Solution

The fourth proportional to 885.34, 1,329.03 and 475.27 is: 713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.34 : 1,329.03 = 475.27 : x
  2. Step 2: Convert to fraction form
    885.34/1,329.03 = 475.27/x
  3. Step 3: Cross multiply
    885.34x = 1,329.03 × 475.27
  4. Step 4: Simplify right side
    885.34x = 631,645.71
  5. Step 5: Solve for x
    x = 631,645.71/885.34
  6. Step 6: Final answer
    x = 713.45

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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.