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Finding the Fourth Proportional to 536.46, 802.61 and 400.11

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Solution

The fourth proportional to 536.46, 802.61 and 400.11 is: 598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.46 : 802.61 = 400.11 : x
  2. Step 2: Convert to fraction form
    536.46/802.61 = 400.11/x
  3. Step 3: Cross multiply
    536.46x = 802.61 × 400.11
  4. Step 4: Simplify right side
    536.46x = 321,128.78
  5. Step 5: Solve for x
    x = 321,128.78/536.46
  6. Step 6: Final answer
    x = 598.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.