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Finding the Fourth Proportional to 886.07, 1,328.14 and 474.19

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Solution

The fourth proportional to 886.07, 1,328.14 and 474.19 is: 710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.07 : 1,328.14 = 474.19 : x
  2. Step 2: Convert to fraction form
    886.07/1,328.14 = 474.19/x
  3. Step 3: Cross multiply
    886.07x = 1,328.14 × 474.19
  4. Step 4: Simplify right side
    886.07x = 629,790.71
  5. Step 5: Solve for x
    x = 629,790.71/886.07
  6. Step 6: Final answer
    x = 710.77

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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.