Home / 1,278,899.96-1,764,954.77-762,516.45

Finding the Fourth Proportional to 1,278,899.96, 1,764,954.77 and 762,516.45

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Solution

The fourth proportional to 1,278,899.96, 1,764,954.77 and 762,516.45 is: 1,052,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,899.96 : 1,764,954.77 = 762,516.45 : x
  2. Step 2: Convert to fraction form
    1,278,899.96/1,764,954.77 = 762,516.45/x
  3. Step 3: Cross multiply
    1,278,899.96x = 1,764,954.77 × 762,516.45
  4. Step 4: Simplify right side
    1,278,899.96x = 1,345,807,041,818.38
  5. Step 5: Solve for x
    x = 1,345,807,041,818.38/1,278,899.96
  6. Step 6: Final answer
    x = 1,052,316.12

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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.