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Finding the Fourth Proportional to 959.04, 1,437.21 and 547.56

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Solution

The fourth proportional to 959.04, 1,437.21 and 547.56 is: 820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.04 : 1,437.21 = 547.56 : x
  2. Step 2: Convert to fraction form
    959.04/1,437.21 = 547.56/x
  3. Step 3: Cross multiply
    959.04x = 1,437.21 × 547.56
  4. Step 4: Simplify right side
    959.04x = 786,958.71
  5. Step 5: Solve for x
    x = 786,958.71/959.04
  6. Step 6: Final answer
    x = 820.57

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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.