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Finding the Fourth Proportional to 1,010.88, 1,515.84 and 523.44

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Solution

The fourth proportional to 1,010.88, 1,515.84 and 523.44 is: 784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.88 : 1,515.84 = 523.44 : x
  2. Step 2: Convert to fraction form
    1,010.88/1,515.84 = 523.44/x
  3. Step 3: Cross multiply
    1,010.88x = 1,515.84 × 523.44
  4. Step 4: Simplify right side
    1,010.88x = 793,451.29
  5. Step 5: Solve for x
    x = 793,451.29/1,010.88
  6. Step 6: Final answer
    x = 784.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.