Home / 1,519.07-2,278.60-493.07

Finding the Fourth Proportional to 1,519.07, 2,278.60 and 493.07

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Solution

The fourth proportional to 1,519.07, 2,278.60 and 493.07 is: 739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.07 : 2,278.60 = 493.07 : x
  2. Step 2: Convert to fraction form
    1,519.07/2,278.60 = 493.07/x
  3. Step 3: Cross multiply
    1,519.07x = 2,278.60 × 493.07
  4. Step 4: Simplify right side
    1,519.07x = 1,123,509.30
  5. Step 5: Solve for x
    x = 1,123,509.30/1,519.07
  6. Step 6: Final answer
    x = 739.60

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Half scale
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Double scale
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1.5x scale

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.