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Finding the Fourth Proportional to 741.39, 1,024.16 and 535.47

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Solution

The fourth proportional to 741.39, 1,024.16 and 535.47 is: 739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.39 : 1,024.16 = 535.47 : x
  2. Step 2: Convert to fraction form
    741.39/1,024.16 = 535.47/x
  3. Step 3: Cross multiply
    741.39x = 1,024.16 × 535.47
  4. Step 4: Simplify right side
    741.39x = 548,404.28
  5. Step 5: Solve for x
    x = 548,404.28/741.39
  6. Step 6: Final answer
    x = 739.70

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1.5x scale

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.