Home / 767,920.78-1,059,941.48-445,734.68

Finding the Fourth Proportional to 767,920.78, 1,059,941.48 and 445,734.68

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Solution

The fourth proportional to 767,920.78, 1,059,941.48 and 445,734.68 is: 615,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,920.78 : 1,059,941.48 = 445,734.68 : x
  2. Step 2: Convert to fraction form
    767,920.78/1,059,941.48 = 445,734.68/x
  3. Step 3: Cross multiply
    767,920.78x = 1,059,941.48 × 445,734.68
  4. Step 4: Simplify right side
    767,920.78x = 472,452,672,883.62
  5. Step 5: Solve for x
    x = 472,452,672,883.62/767,920.78
  6. Step 6: Final answer
    x = 615,236.21

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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.