Home / 1,313,212.52-1,969,818.80-315,940.52

Finding the Fourth Proportional to 1,313,212.52, 1,969,818.80 and 315,940.52

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Solution

The fourth proportional to 1,313,212.52, 1,969,818.80 and 315,940.52 is: 473,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,212.52 : 1,969,818.80 = 315,940.52 : x
  2. Step 2: Convert to fraction form
    1,313,212.52/1,969,818.80 = 315,940.52/x
  3. Step 3: Cross multiply
    1,313,212.52x = 1,969,818.80 × 315,940.52
  4. Step 4: Simplify right side
    1,313,212.52x = 622,345,575,977.78
  5. Step 5: Solve for x
    x = 622,345,575,977.78/1,313,212.52
  6. Step 6: Final answer
    x = 473,910.78

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Similar ratio
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1.5x scale

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.