Home / 1,198,942.95-1,655,274.48-780,237.72

Finding the Fourth Proportional to 1,198,942.95, 1,655,274.48 and 780,237.72

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Solution

The fourth proportional to 1,198,942.95, 1,655,274.48 and 780,237.72 is: 1,077,205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,942.95 : 1,655,274.48 = 780,237.72 : x
  2. Step 2: Convert to fraction form
    1,198,942.95/1,655,274.48 = 780,237.72/x
  3. Step 3: Cross multiply
    1,198,942.95x = 1,655,274.48 × 780,237.72
  4. Step 4: Simplify right side
    1,198,942.95x = 1,291,507,586,249.39
  5. Step 5: Solve for x
    x = 1,291,507,586,249.39/1,198,942.95
  6. Step 6: Final answer
    x = 1,077,205.21

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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.