Home / 1,293,915.36-1,785,632.94-720,990.48

Finding the Fourth Proportional to 1,293,915.36, 1,785,632.94 and 720,990.48

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Solution

The fourth proportional to 1,293,915.36, 1,785,632.94 and 720,990.48 is: 994,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,915.36 : 1,785,632.94 = 720,990.48 : x
  2. Step 2: Convert to fraction form
    1,293,915.36/1,785,632.94 = 720,990.48/x
  3. Step 3: Cross multiply
    1,293,915.36x = 1,785,632.94 × 720,990.48
  4. Step 4: Simplify right side
    1,293,915.36x = 1,287,424,350,514.41
  5. Step 5: Solve for x
    x = 1,287,424,350,514.41/1,293,915.36
  6. Step 6: Final answer
    x = 994,983.44

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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.