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Finding the Fourth Proportional to 1,040.05, 1,560.08 and 600.89

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Solution

The fourth proportional to 1,040.05, 1,560.08 and 600.89 is: 901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.05 : 1,560.08 = 600.89 : x
  2. Step 2: Convert to fraction form
    1,040.05/1,560.08 = 600.89/x
  3. Step 3: Cross multiply
    1,040.05x = 1,560.08 × 600.89
  4. Step 4: Simplify right side
    1,040.05x = 937,437.37
  5. Step 5: Solve for x
    x = 937,437.37/1,040.05
  6. Step 6: Final answer
    x = 901.34

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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.