Home / 1,028.48-1,541.33-479.47

Finding the Fourth Proportional to 1,028.48, 1,541.33 and 479.47

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Solution

The fourth proportional to 1,028.48, 1,541.33 and 479.47 is: 718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.48 : 1,541.33 = 479.47 : x
  2. Step 2: Convert to fraction form
    1,028.48/1,541.33 = 479.47/x
  3. Step 3: Cross multiply
    1,028.48x = 1,541.33 × 479.47
  4. Step 4: Simplify right side
    1,028.48x = 739,018.84
  5. Step 5: Solve for x
    x = 739,018.84/1,028.48
  6. Step 6: Final answer
    x = 718.56

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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.