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Finding the Fourth Proportional to 685,927.80, 946,265.22 and 444,291

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Solution

The fourth proportional to 685,927.80, 946,265.22 and 444,291 is: 612,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,927.80 : 946,265.22 = 444,291 : x
  2. Step 2: Convert to fraction form
    685,927.80/946,265.22 = 444,291/x
  3. Step 3: Cross multiply
    685,927.80x = 946,265.22 × 444,291
  4. Step 4: Simplify right side
    685,927.80x = 420,417,120,859.02
  5. Step 5: Solve for x
    x = 420,417,120,859.02/685,927.80
  6. Step 6: Final answer
    x = 612,917.45

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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.