Home / 2,154,422.78-2,973,102.70-1,187,569.22

Finding the Fourth Proportional to 2,154,422.78, 2,973,102.70 and 1,187,569.22

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Solution

The fourth proportional to 2,154,422.78, 2,973,102.70 and 1,187,569.22 is: 1,638,845.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,422.78 : 2,973,102.70 = 1,187,569.22 : x
  2. Step 2: Convert to fraction form
    2,154,422.78/2,973,102.70 = 1,187,569.22/x
  3. Step 3: Cross multiply
    2,154,422.78x = 2,973,102.70 × 1,187,569.22
  4. Step 4: Simplify right side
    2,154,422.78x = 3,530,765,254,418.89
  5. Step 5: Solve for x
    x = 3,530,765,254,418.89/2,154,422.78
  6. Step 6: Final answer
    x = 1,638,845.12

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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.