Home / 1,188,917.60-1,783,355.74-478,927.49

Finding the Fourth Proportional to 1,188,917.60, 1,783,355.74 and 478,927.49

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Solution

The fourth proportional to 1,188,917.60, 1,783,355.74 and 478,927.49 is: 718,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,917.60 : 1,783,355.74 = 478,927.49 : x
  2. Step 2: Convert to fraction form
    1,188,917.60/1,783,355.74 = 478,927.49/x
  3. Step 3: Cross multiply
    1,188,917.60x = 1,783,355.74 × 478,927.49
  4. Step 4: Simplify right side
    1,188,917.60x = 854,098,078,221.20
  5. Step 5: Solve for x
    x = 854,098,078,221.20/1,188,917.60
  6. Step 6: Final answer
    x = 718,382.91

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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.