Home / 1,264,881.78-1,745,578.23-721,007.70

Finding the Fourth Proportional to 1,264,881.78, 1,745,578.23 and 721,007.70

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Solution

The fourth proportional to 1,264,881.78, 1,745,578.23 and 721,007.70 is: 995,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,881.78 : 1,745,578.23 = 721,007.70 : x
  2. Step 2: Convert to fraction form
    1,264,881.78/1,745,578.23 = 721,007.70/x
  3. Step 3: Cross multiply
    1,264,881.78x = 1,745,578.23 × 721,007.70
  4. Step 4: Simplify right side
    1,264,881.78x = 1,258,575,344,782.37
  5. Step 5: Solve for x
    x = 1,258,575,344,782.37/1,264,881.78
  6. Step 6: Final answer
    x = 995,014.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.