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Finding the Fourth Proportional to 730.08, 1,007.71 and 464.57

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Solution

The fourth proportional to 730.08, 1,007.71 and 464.57 is: 641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.08 : 1,007.71 = 464.57 : x
  2. Step 2: Convert to fraction form
    730.08/1,007.71 = 464.57/x
  3. Step 3: Cross multiply
    730.08x = 1,007.71 × 464.57
  4. Step 4: Simplify right side
    730.08x = 468,144.47
  5. Step 5: Solve for x
    x = 468,144.47/730.08
  6. Step 6: Final answer
    x = 641.23

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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.