Home / 2,190,960.78-3,023,007.48-1,272,644.34

Finding the Fourth Proportional to 2,190,960.78, 3,023,007.48 and 1,272,644.34

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Solution

The fourth proportional to 2,190,960.78, 3,023,007.48 and 1,272,644.34 is: 1,755,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,960.78 : 3,023,007.48 = 1,272,644.34 : x
  2. Step 2: Convert to fraction form
    2,190,960.78/3,023,007.48 = 1,272,644.34/x
  3. Step 3: Cross multiply
    2,190,960.78x = 3,023,007.48 × 1,272,644.34
  4. Step 4: Simplify right side
    2,190,960.78x = 3,847,213,359,199.66
  5. Step 5: Solve for x
    x = 3,847,213,359,199.66/2,190,960.78
  6. Step 6: Final answer
    x = 1,755,948.07

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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.