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Finding the Fourth Proportional to 1,017.43, 1,526.26 and 401.06

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Solution

The fourth proportional to 1,017.43, 1,526.26 and 401.06 is: 601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.43 : 1,526.26 = 401.06 : x
  2. Step 2: Convert to fraction form
    1,017.43/1,526.26 = 401.06/x
  3. Step 3: Cross multiply
    1,017.43x = 1,526.26 × 401.06
  4. Step 4: Simplify right side
    1,017.43x = 612,114.20
  5. Step 5: Solve for x
    x = 612,114.20/1,017.43
  6. Step 6: Final answer
    x = 601.63

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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.