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Finding the Fourth Proportional to 637.00, 876.38 and 619.79

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Solution

The fourth proportional to 637.00, 876.38 and 619.79 is: 852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.00 : 876.38 = 619.79 : x
  2. Step 2: Convert to fraction form
    637.00/876.38 = 619.79/x
  3. Step 3: Cross multiply
    637.00x = 876.38 × 619.79
  4. Step 4: Simplify right side
    637.00x = 543,164.08
  5. Step 5: Solve for x
    x = 543,164.08/637.00
  6. Step 6: Final answer
    x = 852.69

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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.