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Finding the Fourth Proportional to 459,499.59, 689,282.34 and 122,538.48

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Solution

The fourth proportional to 459,499.59, 689,282.34 and 122,538.48 is: 183,816.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,499.59 : 689,282.34 = 122,538.48 : x
  2. Step 2: Convert to fraction form
    459,499.59/689,282.34 = 122,538.48/x
  3. Step 3: Cross multiply
    459,499.59x = 689,282.34 × 122,538.48
  4. Step 4: Simplify right side
    459,499.59x = 84,463,610,234.44
  5. Step 5: Solve for x
    x = 84,463,610,234.44/459,499.59
  6. Step 6: Final answer
    x = 183,816.51

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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.