Home / 754.03-1,040.57-439.51

Finding the Fourth Proportional to 754.03, 1,040.57 and 439.51

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Solution

The fourth proportional to 754.03, 1,040.57 and 439.51 is: 606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.03 : 1,040.57 = 439.51 : x
  2. Step 2: Convert to fraction form
    754.03/1,040.57 = 439.51/x
  3. Step 3: Cross multiply
    754.03x = 1,040.57 × 439.51
  4. Step 4: Simplify right side
    754.03x = 457,341.61
  5. Step 5: Solve for x
    x = 457,341.61/754.03
  6. Step 6: Final answer
    x = 606.53

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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.