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Finding the Fourth Proportional to 730.52, 1,008.13 and 435.80

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Solution

The fourth proportional to 730.52, 1,008.13 and 435.80 is: 601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.52 : 1,008.13 = 435.80 : x
  2. Step 2: Convert to fraction form
    730.52/1,008.13 = 435.80/x
  3. Step 3: Cross multiply
    730.52x = 1,008.13 × 435.80
  4. Step 4: Simplify right side
    730.52x = 439,343.05
  5. Step 5: Solve for x
    x = 439,343.05/730.52
  6. Step 6: Final answer
    x = 601.41

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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.