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Finding the Fourth Proportional to 730.53, 1,008.04 and 435.74

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Solution

The fourth proportional to 730.53, 1,008.04 and 435.74 is: 601.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.53 : 1,008.04 = 435.74 : x
  2. Step 2: Convert to fraction form
    730.53/1,008.04 = 435.74/x
  3. Step 3: Cross multiply
    730.53x = 1,008.04 × 435.74
  4. Step 4: Simplify right side
    730.53x = 439,236.13
  5. Step 5: Solve for x
    x = 439,236.13/730.53
  6. Step 6: Final answer
    x = 601.26

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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.