Home / 913,643.76-1,370,745.96-408,629.56

Finding the Fourth Proportional to 913,643.76, 1,370,745.96 and 408,629.56

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Solution

The fourth proportional to 913,643.76, 1,370,745.96 and 408,629.56 is: 613,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,643.76 : 1,370,745.96 = 408,629.56 : x
  2. Step 2: Convert to fraction form
    913,643.76/1,370,745.96 = 408,629.56/x
  3. Step 3: Cross multiply
    913,643.76x = 1,370,745.96 × 408,629.56
  4. Step 4: Simplify right side
    913,643.76x = 560,127,318,506.58
  5. Step 5: Solve for x
    x = 560,127,318,506.58/913,643.76
  6. Step 6: Final answer
    x = 613,069.71

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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.