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Finding the Fourth Proportional to 735.04, 1,012.62 and 513.60

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Solution

The fourth proportional to 735.04, 1,012.62 and 513.60 is: 707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.04 : 1,012.62 = 513.60 : x
  2. Step 2: Convert to fraction form
    735.04/1,012.62 = 513.60/x
  3. Step 3: Cross multiply
    735.04x = 1,012.62 × 513.60
  4. Step 4: Simplify right side
    735.04x = 520,081.63
  5. Step 5: Solve for x
    x = 520,081.63/735.04
  6. Step 6: Final answer
    x = 707.56

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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.