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Finding the Fourth Proportional to 1,011.38, 1,514.45 and 600.80

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Solution

The fourth proportional to 1,011.38, 1,514.45 and 600.80 is: 899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.38 : 1,514.45 = 600.80 : x
  2. Step 2: Convert to fraction form
    1,011.38/1,514.45 = 600.80/x
  3. Step 3: Cross multiply
    1,011.38x = 1,514.45 × 600.80
  4. Step 4: Simplify right side
    1,011.38x = 909,870.98
  5. Step 5: Solve for x
    x = 909,870.98/1,011.38
  6. Step 6: Final answer
    x = 899.64

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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.