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Finding the Fourth Proportional to 573.48, 854.38 and 553.91

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Solution

The fourth proportional to 573.48, 854.38 and 553.91 is: 825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.48 : 854.38 = 553.91 : x
  2. Step 2: Convert to fraction form
    573.48/854.38 = 553.91/x
  3. Step 3: Cross multiply
    573.48x = 854.38 × 553.91
  4. Step 4: Simplify right side
    573.48x = 473,246.05
  5. Step 5: Solve for x
    x = 473,246.05/573.48
  6. Step 6: Final answer
    x = 825.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.