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Finding the Fourth Proportional to 586.21, 878.11 and 470.03

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Solution

The fourth proportional to 586.21, 878.11 and 470.03 is: 704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.21 : 878.11 = 470.03 : x
  2. Step 2: Convert to fraction form
    586.21/878.11 = 470.03/x
  3. Step 3: Cross multiply
    586.21x = 878.11 × 470.03
  4. Step 4: Simplify right side
    586.21x = 412,738.04
  5. Step 5: Solve for x
    x = 412,738.04/586.21
  6. Step 6: Final answer
    x = 704.08

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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.