Home / 1,027.60-1,541.32-479.64

Finding the Fourth Proportional to 1,027.60, 1,541.32 and 479.64

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Solution

The fourth proportional to 1,027.60, 1,541.32 and 479.64 is: 719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.60 : 1,541.32 = 479.64 : x
  2. Step 2: Convert to fraction form
    1,027.60/1,541.32 = 479.64/x
  3. Step 3: Cross multiply
    1,027.60x = 1,541.32 × 479.64
  4. Step 4: Simplify right side
    1,027.60x = 739,278.72
  5. Step 5: Solve for x
    x = 739,278.72/1,027.60
  6. Step 6: Final answer
    x = 719.42

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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.