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Finding the Fourth Proportional to 1,718.58, 2,577.17 and 622.34

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Solution

The fourth proportional to 1,718.58, 2,577.17 and 622.34 is: 933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.58 : 2,577.17 = 622.34 : x
  2. Step 2: Convert to fraction form
    1,718.58/2,577.17 = 622.34/x
  3. Step 3: Cross multiply
    1,718.58x = 2,577.17 × 622.34
  4. Step 4: Simplify right side
    1,718.58x = 1,603,859.98
  5. Step 5: Solve for x
    x = 1,603,859.98/1,718.58
  6. Step 6: Final answer
    x = 933.25

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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.