Home / 1,318,711.86-1,820,181.11-775,022.85

Finding the Fourth Proportional to 1,318,711.86, 1,820,181.11 and 775,022.85

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Solution

The fourth proportional to 1,318,711.86, 1,820,181.11 and 775,022.85 is: 1,069,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,711.86 : 1,820,181.11 = 775,022.85 : x
  2. Step 2: Convert to fraction form
    1,318,711.86/1,820,181.11 = 775,022.85/x
  3. Step 3: Cross multiply
    1,318,711.86x = 1,820,181.11 × 775,022.85
  4. Step 4: Simplify right side
    1,318,711.86x = 1,410,681,947,513.25
  5. Step 5: Solve for x
    x = 1,410,681,947,513.25/1,318,711.86
  6. Step 6: Final answer
    x = 1,069,742.37

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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.