Home / 335,621.60-503,432.40-322,719.20

Finding the Fourth Proportional to 335,621.60, 503,432.40 and 322,719.20

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Solution

The fourth proportional to 335,621.60, 503,432.40 and 322,719.20 is: 484,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,621.60 : 503,432.40 = 322,719.20 : x
  2. Step 2: Convert to fraction form
    335,621.60/503,432.40 = 322,719.20/x
  3. Step 3: Cross multiply
    335,621.60x = 503,432.40 × 322,719.20
  4. Step 4: Simplify right side
    335,621.60x = 162,467,301,382.08
  5. Step 5: Solve for x
    x = 162,467,301,382.08/335,621.60
  6. Step 6: Final answer
    x = 484,078.80

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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.