Home / 1,188,906.40-1,783,338.96-478,916.29

Finding the Fourth Proportional to 1,188,906.40, 1,783,338.96 and 478,916.29

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Solution

The fourth proportional to 1,188,906.40, 1,783,338.96 and 478,916.29 is: 718,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,906.40 : 1,783,338.96 = 478,916.29 : x
  2. Step 2: Convert to fraction form
    1,188,906.40/1,783,338.96 = 478,916.29/x
  3. Step 3: Cross multiply
    1,188,906.40x = 1,783,338.96 × 478,916.29
  4. Step 4: Simplify right side
    1,188,906.40x = 854,070,078,535.66
  5. Step 5: Solve for x
    x = 854,070,078,535.66/1,188,906.40
  6. Step 6: Final answer
    x = 718,366.12

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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.