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Finding the Fourth Proportional to 751.26, 1,035.55 and 529.86

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Solution

The fourth proportional to 751.26, 1,035.55 and 529.86 is: 730.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.26 : 1,035.55 = 529.86 : x
  2. Step 2: Convert to fraction form
    751.26/1,035.55 = 529.86/x
  3. Step 3: Cross multiply
    751.26x = 1,035.55 × 529.86
  4. Step 4: Simplify right side
    751.26x = 548,696.52
  5. Step 5: Solve for x
    x = 548,696.52/751.26
  6. Step 6: Final answer
    x = 730.37

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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.