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Finding the Fourth Proportional to 847.07, 1,168.89 and 474.02

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Solution

The fourth proportional to 847.07, 1,168.89 and 474.02 is: 654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.07 : 1,168.89 = 474.02 : x
  2. Step 2: Convert to fraction form
    847.07/1,168.89 = 474.02/x
  3. Step 3: Cross multiply
    847.07x = 1,168.89 × 474.02
  4. Step 4: Simplify right side
    847.07x = 554,077.24
  5. Step 5: Solve for x
    x = 554,077.24/847.07
  6. Step 6: Final answer
    x = 654.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.