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Finding the Fourth Proportional to 1,062.84, 1,593.12 and 404.40

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Solution

The fourth proportional to 1,062.84, 1,593.12 and 404.40 is: 606.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.84 : 1,593.12 = 404.40 : x
  2. Step 2: Convert to fraction form
    1,062.84/1,593.12 = 404.40/x
  3. Step 3: Cross multiply
    1,062.84x = 1,593.12 × 404.40
  4. Step 4: Simplify right side
    1,062.84x = 644,257.73
  5. Step 5: Solve for x
    x = 644,257.73/1,062.84
  6. Step 6: Final answer
    x = 606.17

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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.