Home / 3,139,318.40-4,708,977.60-775,414.40

Finding the Fourth Proportional to 3,139,318.40, 4,708,977.60 and 775,414.40

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Solution

The fourth proportional to 3,139,318.40, 4,708,977.60 and 775,414.40 is: 1,163,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,318.40 : 4,708,977.60 = 775,414.40 : x
  2. Step 2: Convert to fraction form
    3,139,318.40/4,708,977.60 = 775,414.40/x
  3. Step 3: Cross multiply
    3,139,318.40x = 4,708,977.60 × 775,414.40
  4. Step 4: Simplify right side
    3,139,318.40x = 3,651,409,040,317.44
  5. Step 5: Solve for x
    x = 3,651,409,040,317.44/3,139,318.40
  6. Step 6: Final answer
    x = 1,163,121.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.