Home / 2,256,961.07-3,114,605.79-1,290,112.20

Finding the Fourth Proportional to 2,256,961.07, 3,114,605.79 and 1,290,112.20

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Solution

The fourth proportional to 2,256,961.07, 3,114,605.79 and 1,290,112.20 is: 1,780,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256,961.07 : 3,114,605.79 = 1,290,112.20 : x
  2. Step 2: Convert to fraction form
    2,256,961.07/3,114,605.79 = 1,290,112.20/x
  3. Step 3: Cross multiply
    2,256,961.07x = 3,114,605.79 × 1,290,112.20
  4. Step 4: Simplify right side
    2,256,961.07x = 4,018,190,927,869.64
  5. Step 5: Solve for x
    x = 4,018,190,927,869.64/2,256,961.07
  6. Step 6: Final answer
    x = 1,780,354.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.