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Finding the Fourth Proportional to 650.58, 898.43 and 556.77

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Solution

The fourth proportional to 650.58, 898.43 and 556.77 is: 768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.58 : 898.43 = 556.77 : x
  2. Step 2: Convert to fraction form
    650.58/898.43 = 556.77/x
  3. Step 3: Cross multiply
    650.58x = 898.43 × 556.77
  4. Step 4: Simplify right side
    650.58x = 500,219.46
  5. Step 5: Solve for x
    x = 500,219.46/650.58
  6. Step 6: Final answer
    x = 768.89

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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.