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Finding the Fourth Proportional to 459,428.22, 687,667.86 and 245,662.20

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Solution

The fourth proportional to 459,428.22, 687,667.86 and 245,662.20 is: 367,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,428.22 : 687,667.86 = 245,662.20 : x
  2. Step 2: Convert to fraction form
    459,428.22/687,667.86 = 245,662.20/x
  3. Step 3: Cross multiply
    459,428.22x = 687,667.86 × 245,662.20
  4. Step 4: Simplify right side
    459,428.22x = 168,933,999,356.89
  5. Step 5: Solve for x
    x = 168,933,999,356.89/459,428.22
  6. Step 6: Final answer
    x = 367,704.88

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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.