Home / 790,976.98-1,091,542.80-428,392.54

Finding the Fourth Proportional to 790,976.98, 1,091,542.80 and 428,392.54

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Solution

The fourth proportional to 790,976.98, 1,091,542.80 and 428,392.54 is: 591,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,976.98 : 1,091,542.80 = 428,392.54 : x
  2. Step 2: Convert to fraction form
    790,976.98/1,091,542.80 = 428,392.54/x
  3. Step 3: Cross multiply
    790,976.98x = 1,091,542.80 × 428,392.54
  4. Step 4: Simplify right side
    790,976.98x = 467,608,792,610.71
  5. Step 5: Solve for x
    x = 467,608,792,610.71/790,976.98
  6. Step 6: Final answer
    x = 591,178.76

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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.