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Finding the Fourth Proportional to 659.94, 910.08 and 527.58

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Solution

The fourth proportional to 659.94, 910.08 and 527.58 is: 727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.94 : 910.08 = 527.58 : x
  2. Step 2: Convert to fraction form
    659.94/910.08 = 527.58/x
  3. Step 3: Cross multiply
    659.94x = 910.08 × 527.58
  4. Step 4: Simplify right side
    659.94x = 480,140.01
  5. Step 5: Solve for x
    x = 480,140.01/659.94
  6. Step 6: Final answer
    x = 727.55

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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.