Home / 459,920.25-689,827.82-122,987.18

Finding the Fourth Proportional to 459,920.25, 689,827.82 and 122,987.18

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Solution

The fourth proportional to 459,920.25, 689,827.82 and 122,987.18 is: 184,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,920.25 : 689,827.82 = 122,987.18 : x
  2. Step 2: Convert to fraction form
    459,920.25/689,827.82 = 122,987.18/x
  3. Step 3: Cross multiply
    459,920.25x = 689,827.82 × 122,987.18
  4. Step 4: Simplify right side
    459,920.25x = 84,839,974,664.47
  5. Step 5: Solve for x
    x = 84,839,974,664.47/459,920.25
  6. Step 6: Final answer
    x = 184,466.71

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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.