Home / 1,155,145.31-1,740,516.13-957,147.68

Finding the Fourth Proportional to 1,155,145.31, 1,740,516.13 and 957,147.68

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Solution

The fourth proportional to 1,155,145.31, 1,740,516.13 and 957,147.68 is: 1,442,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,145.31 : 1,740,516.13 = 957,147.68 : x
  2. Step 2: Convert to fraction form
    1,155,145.31/1,740,516.13 = 957,147.68/x
  3. Step 3: Cross multiply
    1,155,145.31x = 1,740,516.13 × 957,147.68
  4. Step 4: Simplify right side
    1,155,145.31x = 1,665,930,971,589.40
  5. Step 5: Solve for x
    x = 1,665,930,971,589.40/1,155,145.31
  6. Step 6: Final answer
    x = 1,442,183.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.