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Finding the Fourth Proportional to 881.00, 1,215.50 and 586.32

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Solution

The fourth proportional to 881.00, 1,215.50 and 586.32 is: 808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    881.00 : 1,215.50 = 586.32 : x
  2. Step 2: Convert to fraction form
    881.00/1,215.50 = 586.32/x
  3. Step 3: Cross multiply
    881.00x = 1,215.50 × 586.32
  4. Step 4: Simplify right side
    881.00x = 712,667.35
  5. Step 5: Solve for x
    x = 712,667.35/881.00
  6. Step 6: Final answer
    x = 808.93

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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.