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Finding the Fourth Proportional to 802.02, 1,105.02 and 601.95

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Solution

The fourth proportional to 802.02, 1,105.02 and 601.95 is: 829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.02 : 1,105.02 = 601.95 : x
  2. Step 2: Convert to fraction form
    802.02/1,105.02 = 601.95/x
  3. Step 3: Cross multiply
    802.02x = 1,105.02 × 601.95
  4. Step 4: Simplify right side
    802.02x = 665,166.79
  5. Step 5: Solve for x
    x = 665,166.79/802.02
  6. Step 6: Final answer
    x = 829.36

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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.