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Finding the Fourth Proportional to 606.98, 910.59 and 401.72

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Solution

The fourth proportional to 606.98, 910.59 and 401.72 is: 602.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.98 : 910.59 = 401.72 : x
  2. Step 2: Convert to fraction form
    606.98/910.59 = 401.72/x
  3. Step 3: Cross multiply
    606.98x = 910.59 × 401.72
  4. Step 4: Simplify right side
    606.98x = 365,802.98
  5. Step 5: Solve for x
    x = 365,802.98/606.98
  6. Step 6: Final answer
    x = 602.66

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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.