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Finding the Fourth Proportional to 867.07, 1,299.58 and 501.09

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Solution

The fourth proportional to 867.07, 1,299.58 and 501.09 is: 751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.07 : 1,299.58 = 501.09 : x
  2. Step 2: Convert to fraction form
    867.07/1,299.58 = 501.09/x
  3. Step 3: Cross multiply
    867.07x = 1,299.58 × 501.09
  4. Step 4: Simplify right side
    867.07x = 651,200.42
  5. Step 5: Solve for x
    x = 651,200.42/867.07
  6. Step 6: Final answer
    x = 751.03

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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.