Home / 1,243,211.56-1,715,903.62-790,414.12

Finding the Fourth Proportional to 1,243,211.56, 1,715,903.62 and 790,414.12

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Solution

The fourth proportional to 1,243,211.56, 1,715,903.62 and 790,414.12 is: 1,090,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,211.56 : 1,715,903.62 = 790,414.12 : x
  2. Step 2: Convert to fraction form
    1,243,211.56/1,715,903.62 = 790,414.12/x
  3. Step 3: Cross multiply
    1,243,211.56x = 1,715,903.62 × 790,414.12
  4. Step 4: Simplify right side
    1,243,211.56x = 1,356,274,449,807.11
  5. Step 5: Solve for x
    x = 1,356,274,449,807.11/1,243,211.56
  6. Step 6: Final answer
    x = 1,090,944.21

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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.