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Finding the Fourth Proportional to 759.41, 1,046.94 and 479.51

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Solution

The fourth proportional to 759.41, 1,046.94 and 479.51 is: 661.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    759.41 : 1,046.94 = 479.51 : x
  2. Step 2: Convert to fraction form
    759.41/1,046.94 = 479.51/x
  3. Step 3: Cross multiply
    759.41x = 1,046.94 × 479.51
  4. Step 4: Simplify right side
    759.41x = 502,018.20
  5. Step 5: Solve for x
    x = 502,018.20/759.41
  6. Step 6: Final answer
    x = 661.06

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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.