Home / 1,307,274.12-1,960,912.72-408,720.57

Finding the Fourth Proportional to 1,307,274.12, 1,960,912.72 and 408,720.57

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Solution

The fourth proportional to 1,307,274.12, 1,960,912.72 and 408,720.57 is: 613,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,274.12 : 1,960,912.72 = 408,720.57 : x
  2. Step 2: Convert to fraction form
    1,307,274.12/1,960,912.72 = 408,720.57/x
  3. Step 3: Cross multiply
    1,307,274.12x = 1,960,912.72 × 408,720.57
  4. Step 4: Simplify right side
    1,307,274.12x = 801,465,367,218.28
  5. Step 5: Solve for x
    x = 801,465,367,218.28/1,307,274.12
  6. Step 6: Final answer
    x = 613,081.34

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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.