Home / 459,403.92-689,051.04-122,469.84

Finding the Fourth Proportional to 459,403.92, 689,051.04 and 122,469.84

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Solution

The fourth proportional to 459,403.92, 689,051.04 and 122,469.84 is: 183,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,403.92 : 689,051.04 = 122,469.84 : x
  2. Step 2: Convert to fraction form
    459,403.92/689,051.04 = 122,469.84/x
  3. Step 3: Cross multiply
    459,403.92x = 689,051.04 × 122,469.84
  4. Step 4: Simplify right side
    459,403.92x = 84,387,970,620.63
  5. Step 5: Solve for x
    x = 84,387,970,620.63/459,403.92
  6. Step 6: Final answer
    x = 183,690.14

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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.