Home / 1,131,230.20-1,696,845.30-1,078,742.20

Finding the Fourth Proportional to 1,131,230.20, 1,696,845.30 and 1,078,742.20

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Solution

The fourth proportional to 1,131,230.20, 1,696,845.30 and 1,078,742.20 is: 1,618,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,230.20 : 1,696,845.30 = 1,078,742.20 : x
  2. Step 2: Convert to fraction form
    1,131,230.20/1,696,845.30 = 1,078,742.20/x
  3. Step 3: Cross multiply
    1,131,230.20x = 1,696,845.30 × 1,078,742.20
  4. Step 4: Simplify right side
    1,131,230.20x = 1,830,458,631,981.66
  5. Step 5: Solve for x
    x = 1,830,458,631,981.66/1,131,230.20
  6. Step 6: Final answer
    x = 1,618,113.30

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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.