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Finding the Fourth Proportional to 1,071.43, 1,606.23 and 377.66

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Solution

The fourth proportional to 1,071.43, 1,606.23 and 377.66 is: 566.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071.43 : 1,606.23 = 377.66 : x
  2. Step 2: Convert to fraction form
    1,071.43/1,606.23 = 377.66/x
  3. Step 3: Cross multiply
    1,071.43x = 1,606.23 × 377.66
  4. Step 4: Simplify right side
    1,071.43x = 606,612.84
  5. Step 5: Solve for x
    x = 606,612.84/1,071.43
  6. Step 6: Final answer
    x = 566.17

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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.