Home / 459,388.85-689,028.57-122,454.77

Finding the Fourth Proportional to 459,388.85, 689,028.57 and 122,454.77

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Solution

The fourth proportional to 459,388.85, 689,028.57 and 122,454.77 is: 183,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,388.85 : 689,028.57 = 122,454.77 : x
  2. Step 2: Convert to fraction form
    459,388.85/689,028.57 = 122,454.77/x
  3. Step 3: Cross multiply
    459,388.85x = 689,028.57 × 122,454.77
  4. Step 4: Simplify right side
    459,388.85x = 84,374,831,617.64
  5. Step 5: Solve for x
    x = 84,374,831,617.64/459,388.85
  6. Step 6: Final answer
    x = 183,667.57

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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.