Home / 2,105,428.88-2,905,493.08-1,138,559.11

Finding the Fourth Proportional to 2,105,428.88, 2,905,493.08 and 1,138,559.11

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Solution

The fourth proportional to 2,105,428.88, 2,905,493.08 and 1,138,559.11 is: 1,571,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,428.88 : 2,905,493.08 = 1,138,559.11 : x
  2. Step 2: Convert to fraction form
    2,105,428.88/2,905,493.08 = 1,138,559.11/x
  3. Step 3: Cross multiply
    2,105,428.88x = 2,905,493.08 × 1,138,559.11
  4. Step 4: Simplify right side
    2,105,428.88x = 3,308,075,615,275.96
  5. Step 5: Solve for x
    x = 3,308,075,615,275.96/2,105,428.88
  6. Step 6: Final answer
    x = 1,571,212.23

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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.