Home / 844,386.89-1,266,390.40-388,540.86

Finding the Fourth Proportional to 844,386.89, 1,266,390.40 and 388,540.86

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Solution

The fourth proportional to 844,386.89, 1,266,390.40 and 388,540.86 is: 582,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    844,386.89 : 1,266,390.40 = 388,540.86 : x
  2. Step 2: Convert to fraction form
    844,386.89/1,266,390.40 = 388,540.86/x
  3. Step 3: Cross multiply
    844,386.89x = 1,266,390.40 × 388,540.86
  4. Step 4: Simplify right side
    844,386.89x = 492,044,415,111.74
  5. Step 5: Solve for x
    x = 492,044,415,111.74/844,386.89
  6. Step 6: Final answer
    x = 582,723.89

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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.