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Finding the Fourth Proportional to 603.70, 832.54 and 556.58

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Solution

The fourth proportional to 603.70, 832.54 and 556.58 is: 767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.70 : 832.54 = 556.58 : x
  2. Step 2: Convert to fraction form
    603.70/832.54 = 556.58/x
  3. Step 3: Cross multiply
    603.70x = 832.54 × 556.58
  4. Step 4: Simplify right side
    603.70x = 463,378.80
  5. Step 5: Solve for x
    x = 463,378.80/603.70
  6. Step 6: Final answer
    x = 767.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.