Home / 936,135.72-1,291,863.38-506,414.78

Finding the Fourth Proportional to 936,135.72, 1,291,863.38 and 506,414.78

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Solution

The fourth proportional to 936,135.72, 1,291,863.38 and 506,414.78 is: 698,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,135.72 : 1,291,863.38 = 506,414.78 : x
  2. Step 2: Convert to fraction form
    936,135.72/1,291,863.38 = 506,414.78/x
  3. Step 3: Cross multiply
    936,135.72x = 1,291,863.38 × 506,414.78
  4. Step 4: Simplify right side
    936,135.72x = 654,218,709,372.76
  5. Step 5: Solve for x
    x = 654,218,709,372.76/936,135.72
  6. Step 6: Final answer
    x = 698,850.28

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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.