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Finding the Fourth Proportional to 509.90, 760.54 and 494.52

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Solution

The fourth proportional to 509.90, 760.54 and 494.52 is: 737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.90 : 760.54 = 494.52 : x
  2. Step 2: Convert to fraction form
    509.90/760.54 = 494.52/x
  3. Step 3: Cross multiply
    509.90x = 760.54 × 494.52
  4. Step 4: Simplify right side
    509.90x = 376,102.24
  5. Step 5: Solve for x
    x = 376,102.24/509.90
  6. Step 6: Final answer
    x = 737.60

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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.