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Finding the Fourth Proportional to 802.35, 1,107.01 and 714.17

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Solution

The fourth proportional to 802.35, 1,107.01 and 714.17 is: 985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.35 : 1,107.01 = 714.17 : x
  2. Step 2: Convert to fraction form
    802.35/1,107.01 = 714.17/x
  3. Step 3: Cross multiply
    802.35x = 1,107.01 × 714.17
  4. Step 4: Simplify right side
    802.35x = 790,586.01
  5. Step 5: Solve for x
    x = 790,586.01/802.35
  6. Step 6: Final answer
    x = 985.34

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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.