Home / 913,629.53-1,370,345.81-239,778.38

Finding the Fourth Proportional to 913,629.53, 1,370,345.81 and 239,778.38

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Solution

The fourth proportional to 913,629.53, 1,370,345.81 and 239,778.38 is: 359,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,629.53 : 1,370,345.81 = 239,778.38 : x
  2. Step 2: Convert to fraction form
    913,629.53/1,370,345.81 = 239,778.38/x
  3. Step 3: Cross multiply
    913,629.53x = 1,370,345.81 × 239,778.38
  4. Step 4: Simplify right side
    913,629.53x = 328,579,290,310.97
  5. Step 5: Solve for x
    x = 328,579,290,310.97/913,629.53
  6. Step 6: Final answer
    x = 359,641.72

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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.