Home / 621,696.66-857,940.06-349,764.74

Finding the Fourth Proportional to 621,696.66, 857,940.06 and 349,764.74

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Solution

The fourth proportional to 621,696.66, 857,940.06 and 349,764.74 is: 482,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,696.66 : 857,940.06 = 349,764.74 : x
  2. Step 2: Convert to fraction form
    621,696.66/857,940.06 = 349,764.74/x
  3. Step 3: Cross multiply
    621,696.66x = 857,940.06 × 349,764.74
  4. Step 4: Simplify right side
    621,696.66x = 300,077,182,021.48
  5. Step 5: Solve for x
    x = 300,077,182,021.48/621,696.66
  6. Step 6: Final answer
    x = 482,674.59

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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.