Home / 1,245,577.10-1,719,023.31-762,461.51

Finding the Fourth Proportional to 1,245,577.10, 1,719,023.31 and 762,461.51

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Solution

The fourth proportional to 1,245,577.10, 1,719,023.31 and 762,461.51 is: 1,052,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,577.10 : 1,719,023.31 = 762,461.51 : x
  2. Step 2: Convert to fraction form
    1,245,577.10/1,719,023.31 = 762,461.51/x
  3. Step 3: Cross multiply
    1,245,577.10x = 1,719,023.31 × 762,461.51
  4. Step 4: Simplify right side
    1,245,577.10x = 1,310,689,100,072.68
  5. Step 5: Solve for x
    x = 1,310,689,100,072.68/1,245,577.10
  6. Step 6: Final answer
    x = 1,052,274.57

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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.