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Finding the Fourth Proportional to 601.95, 901.78 and 480.07

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Solution

The fourth proportional to 601.95, 901.78 and 480.07 is: 719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.95 : 901.78 = 480.07 : x
  2. Step 2: Convert to fraction form
    601.95/901.78 = 480.07/x
  3. Step 3: Cross multiply
    601.95x = 901.78 × 480.07
  4. Step 4: Simplify right side
    601.95x = 432,917.52
  5. Step 5: Solve for x
    x = 432,917.52/601.95
  6. Step 6: Final answer
    x = 719.19

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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.