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Finding the Fourth Proportional to 459,604.20, 689,470.89 and 122,655.84

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Solution

The fourth proportional to 459,604.20, 689,470.89 and 122,655.84 is: 184,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,604.20 : 689,470.89 = 122,655.84 : x
  2. Step 2: Convert to fraction form
    459,604.20/689,470.89 = 122,655.84/x
  3. Step 3: Cross multiply
    459,604.20x = 689,470.89 × 122,655.84
  4. Step 4: Simplify right side
    459,604.20x = 84,567,633,940.43
  5. Step 5: Solve for x
    x = 84,567,633,940.43/459,604.20
  6. Step 6: Final answer
    x = 184,001.00

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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.