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Finding the Fourth Proportional to 802.68, 1,107.54 and 471.26

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Solution

The fourth proportional to 802.68, 1,107.54 and 471.26 is: 650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.68 : 1,107.54 = 471.26 : x
  2. Step 2: Convert to fraction form
    802.68/1,107.54 = 471.26/x
  3. Step 3: Cross multiply
    802.68x = 1,107.54 × 471.26
  4. Step 4: Simplify right side
    802.68x = 521,939.30
  5. Step 5: Solve for x
    x = 521,939.30/802.68
  6. Step 6: Final answer
    x = 650.25

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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.