Home / 810,126.77-1,215,039.79-297,679.86

Finding the Fourth Proportional to 810,126.77, 1,215,039.79 and 297,679.86

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Solution

The fourth proportional to 810,126.77, 1,215,039.79 and 297,679.86 is: 446,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,126.77 : 1,215,039.79 = 297,679.86 : x
  2. Step 2: Convert to fraction form
    810,126.77/1,215,039.79 = 297,679.86/x
  3. Step 3: Cross multiply
    810,126.77x = 1,215,039.79 × 297,679.86
  4. Step 4: Simplify right side
    810,126.77x = 361,692,874,953.73
  5. Step 5: Solve for x
    x = 361,692,874,953.73/810,126.77
  6. Step 6: Final answer
    x = 446,464.54

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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.