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Finding the Fourth Proportional to 586.13, 808.90 and 411.89

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Solution

The fourth proportional to 586.13, 808.90 and 411.89 is: 568.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.13 : 808.90 = 411.89 : x
  2. Step 2: Convert to fraction form
    586.13/808.90 = 411.89/x
  3. Step 3: Cross multiply
    586.13x = 808.90 × 411.89
  4. Step 4: Simplify right side
    586.13x = 333,172.75
  5. Step 5: Solve for x
    x = 333,172.75/586.13
  6. Step 6: Final answer
    x = 568.43

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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.