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Finding the Fourth Proportional to 867.39, 1,298.76 and 594.01

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Solution

The fourth proportional to 867.39, 1,298.76 and 594.01 is: 889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.39 : 1,298.76 = 594.01 : x
  2. Step 2: Convert to fraction form
    867.39/1,298.76 = 594.01/x
  3. Step 3: Cross multiply
    867.39x = 1,298.76 × 594.01
  4. Step 4: Simplify right side
    867.39x = 771,476.43
  5. Step 5: Solve for x
    x = 771,476.43/867.39
  6. Step 6: Final answer
    x = 889.42

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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.