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Finding the Fourth Proportional to 619.01, 929.48 and 533.31

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Solution

The fourth proportional to 619.01, 929.48 and 533.31 is: 800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.01 : 929.48 = 533.31 : x
  2. Step 2: Convert to fraction form
    619.01/929.48 = 533.31/x
  3. Step 3: Cross multiply
    619.01x = 929.48 × 533.31
  4. Step 4: Simplify right side
    619.01x = 495,698.83
  5. Step 5: Solve for x
    x = 495,698.83/619.01
  6. Step 6: Final answer
    x = 800.79

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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.