Home / 459,821.94-689,767.40-122,855.05

Finding the Fourth Proportional to 459,821.94, 689,767.40 and 122,855.05

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Solution

The fourth proportional to 459,821.94, 689,767.40 and 122,855.05 is: 184,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,821.94 : 689,767.40 = 122,855.05 : x
  2. Step 2: Convert to fraction form
    459,821.94/689,767.40 = 122,855.05/x
  3. Step 3: Cross multiply
    459,821.94x = 689,767.40 × 122,855.05
  4. Step 4: Simplify right side
    459,821.94x = 84,741,408,415.37
  5. Step 5: Solve for x
    x = 84,741,408,415.37/459,821.94
  6. Step 6: Final answer
    x = 184,291.79

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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.