Home / 902,371.38-1,245,272.50-499,963.38

Finding the Fourth Proportional to 902,371.38, 1,245,272.50 and 499,963.38

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Solution

The fourth proportional to 902,371.38, 1,245,272.50 and 499,963.38 is: 689,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,371.38 : 1,245,272.50 = 499,963.38 : x
  2. Step 2: Convert to fraction form
    902,371.38/1,245,272.50 = 499,963.38/x
  3. Step 3: Cross multiply
    902,371.38x = 1,245,272.50 × 499,963.38
  4. Step 4: Simplify right side
    902,371.38x = 622,590,641,894.69
  5. Step 5: Solve for x
    x = 622,590,641,894.69/902,371.38
  6. Step 6: Final answer
    x = 689,949.46

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Double scale
Find fourth proportional to 902,372.38, 1,245,273.88 and 499,964.38
Similar ratio
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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.