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Finding the Fourth Proportional to 508,066.85, 701,067.81 and 278,563.74

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Solution

The fourth proportional to 508,066.85, 701,067.81 and 278,563.74 is: 384,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,066.85 : 701,067.81 = 278,563.74 : x
  2. Step 2: Convert to fraction form
    508,066.85/701,067.81 = 278,563.74/x
  3. Step 3: Cross multiply
    508,066.85x = 701,067.81 × 278,563.74
  4. Step 4: Simplify right side
    508,066.85x = 195,292,070,460.59
  5. Step 5: Solve for x
    x = 195,292,070,460.59/508,066.85
  6. Step 6: Final answer
    x = 384,382.63

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1.5x scale

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.