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Finding the Fourth Proportional to 583.01, 873.39 and 553.49

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Solution

The fourth proportional to 583.01, 873.39 and 553.49 is: 829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.01 : 873.39 = 553.49 : x
  2. Step 2: Convert to fraction form
    583.01/873.39 = 553.49/x
  3. Step 3: Cross multiply
    583.01x = 873.39 × 553.49
  4. Step 4: Simplify right side
    583.01x = 483,412.63
  5. Step 5: Solve for x
    x = 483,412.63/583.01
  6. Step 6: Final answer
    x = 829.17

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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.