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Finding the Fourth Proportional to 846.03, 1,269.66 and 521.63

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Solution

The fourth proportional to 846.03, 1,269.66 and 521.63 is: 782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.03 : 1,269.66 = 521.63 : x
  2. Step 2: Convert to fraction form
    846.03/1,269.66 = 521.63/x
  3. Step 3: Cross multiply
    846.03x = 1,269.66 × 521.63
  4. Step 4: Simplify right side
    846.03x = 662,292.75
  5. Step 5: Solve for x
    x = 662,292.75/846.03
  6. Step 6: Final answer
    x = 782.82

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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.