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Finding the Fourth Proportional to 1,719.59, 2,579.52 and 487.01

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Solution

The fourth proportional to 1,719.59, 2,579.52 and 487.01 is: 730.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.59 : 2,579.52 = 487.01 : x
  2. Step 2: Convert to fraction form
    1,719.59/2,579.52 = 487.01/x
  3. Step 3: Cross multiply
    1,719.59x = 2,579.52 × 487.01
  4. Step 4: Simplify right side
    1,719.59x = 1,256,242.62
  5. Step 5: Solve for x
    x = 1,256,242.62/1,719.59
  6. Step 6: Final answer
    x = 730.55

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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.