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Finding the Fourth Proportional to 586.96, 810.28 and 379.92

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Solution

The fourth proportional to 586.96, 810.28 and 379.92 is: 524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.96 : 810.28 = 379.92 : x
  2. Step 2: Convert to fraction form
    586.96/810.28 = 379.92/x
  3. Step 3: Cross multiply
    586.96x = 810.28 × 379.92
  4. Step 4: Simplify right side
    586.96x = 307,841.58
  5. Step 5: Solve for x
    x = 307,841.58/586.96
  6. Step 6: Final answer
    x = 524.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.