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Finding the Fourth Proportional to 601.24, 901.86 and 520.28

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Solution

The fourth proportional to 601.24, 901.86 and 520.28 is: 780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.24 : 901.86 = 520.28 : x
  2. Step 2: Convert to fraction form
    601.24/901.86 = 520.28/x
  3. Step 3: Cross multiply
    601.24x = 901.86 × 520.28
  4. Step 4: Simplify right side
    601.24x = 469,219.72
  5. Step 5: Solve for x
    x = 469,219.72/601.24
  6. Step 6: Final answer
    x = 780.42

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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.