Home / 1,147,880.05-1,719,851.78-748,315.15

Finding the Fourth Proportional to 1,147,880.05, 1,719,851.78 and 748,315.15

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Solution

The fourth proportional to 1,147,880.05, 1,719,851.78 and 748,315.15 is: 1,121,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,880.05 : 1,719,851.78 = 748,315.15 : x
  2. Step 2: Convert to fraction form
    1,147,880.05/1,719,851.78 = 748,315.15/x
  3. Step 3: Cross multiply
    1,147,880.05x = 1,719,851.78 × 748,315.15
  4. Step 4: Simplify right side
    1,147,880.05x = 1,286,991,138,986.89
  5. Step 5: Solve for x
    x = 1,286,991,138,986.89/1,147,880.05
  6. Step 6: Final answer
    x = 1,121,189.57

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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.