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Finding the Fourth Proportional to 557.36, 832.05 and 484.48

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Solution

The fourth proportional to 557.36, 832.05 and 484.48 is: 723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.36 : 832.05 = 484.48 : x
  2. Step 2: Convert to fraction form
    557.36/832.05 = 484.48/x
  3. Step 3: Cross multiply
    557.36x = 832.05 × 484.48
  4. Step 4: Simplify right side
    557.36x = 403,111.58
  5. Step 5: Solve for x
    x = 403,111.58/557.36
  6. Step 6: Final answer
    x = 723.25

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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.