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Finding the Fourth Proportional to 601.80, 903.47 and 472.64

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Solution

The fourth proportional to 601.80, 903.47 and 472.64 is: 709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.80 : 903.47 = 472.64 : x
  2. Step 2: Convert to fraction form
    601.80/903.47 = 472.64/x
  3. Step 3: Cross multiply
    601.80x = 903.47 × 472.64
  4. Step 4: Simplify right side
    601.80x = 427,009.18
  5. Step 5: Solve for x
    x = 427,009.18/601.80
  6. Step 6: Final answer
    x = 709.55

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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.