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Finding the Fourth Proportional to 1,028.91, 1,542.98 and 335.42

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Solution

The fourth proportional to 1,028.91, 1,542.98 and 335.42 is: 503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.91 : 1,542.98 = 335.42 : x
  2. Step 2: Convert to fraction form
    1,028.91/1,542.98 = 335.42/x
  3. Step 3: Cross multiply
    1,028.91x = 1,542.98 × 335.42
  4. Step 4: Simplify right side
    1,028.91x = 517,545.26
  5. Step 5: Solve for x
    x = 517,545.26/1,028.91
  6. Step 6: Final answer
    x = 503.00

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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.