Home / 877,021.30-1,314,472.46-427,067.92

Finding the Fourth Proportional to 877,021.30, 1,314,472.46 and 427,067.92

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Solution

The fourth proportional to 877,021.30, 1,314,472.46 and 427,067.92 is: 640,085.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,021.30 : 1,314,472.46 = 427,067.92 : x
  2. Step 2: Convert to fraction form
    877,021.30/1,314,472.46 = 427,067.92/x
  3. Step 3: Cross multiply
    877,021.30x = 1,314,472.46 × 427,067.92
  4. Step 4: Simplify right side
    877,021.30x = 561,369,017,170.97
  5. Step 5: Solve for x
    x = 561,369,017,170.97/877,021.30
  6. Step 6: Final answer
    x = 640,085.96

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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.