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Finding the Fourth Proportional to 802.62, 1,107.42 and 471.06

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Solution

The fourth proportional to 802.62, 1,107.42 and 471.06 is: 649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.62 : 1,107.42 = 471.06 : x
  2. Step 2: Convert to fraction form
    802.62/1,107.42 = 471.06/x
  3. Step 3: Cross multiply
    802.62x = 1,107.42 × 471.06
  4. Step 4: Simplify right side
    802.62x = 521,661.27
  5. Step 5: Solve for x
    x = 521,661.27/802.62
  6. Step 6: Final answer
    x = 649.95

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