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Finding the Fourth Proportional to 924.36, 1,275.60 and 531.44

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Solution

The fourth proportional to 924.36, 1,275.60 and 531.44 is: 733.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.36 : 1,275.60 = 531.44 : x
  2. Step 2: Convert to fraction form
    924.36/1,275.60 = 531.44/x
  3. Step 3: Cross multiply
    924.36x = 1,275.60 × 531.44
  4. Step 4: Simplify right side
    924.36x = 677,904.86
  5. Step 5: Solve for x
    x = 677,904.86/924.36
  6. Step 6: Final answer
    x = 733.38

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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.