Home / 459,923.68-689,832.96-122,990.60

Finding the Fourth Proportional to 459,923.68, 689,832.96 and 122,990.60

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Solution

The fourth proportional to 459,923.68, 689,832.96 and 122,990.60 is: 184,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,923.68 : 689,832.96 = 122,990.60 : x
  2. Step 2: Convert to fraction form
    459,923.68/689,832.96 = 122,990.60/x
  3. Step 3: Cross multiply
    459,923.68x = 689,832.96 × 122,990.60
  4. Step 4: Simplify right side
    459,923.68x = 84,842,970,913.54
  5. Step 5: Solve for x
    x = 84,842,970,913.54/459,923.68
  6. Step 6: Final answer
    x = 184,471.85

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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.