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Finding the Fourth Proportional to 584.61, 877.06 and 486.57

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Solution

The fourth proportional to 584.61, 877.06 and 486.57 is: 729.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.61 : 877.06 = 486.57 : x
  2. Step 2: Convert to fraction form
    584.61/877.06 = 486.57/x
  3. Step 3: Cross multiply
    584.61x = 877.06 × 486.57
  4. Step 4: Simplify right side
    584.61x = 426,754.98
  5. Step 5: Solve for x
    x = 426,754.98/584.61
  6. Step 6: Final answer
    x = 729.99

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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.