Home / 743,721.21-1,115,661.06-238,101.39

Finding the Fourth Proportional to 743,721.21, 1,115,661.06 and 238,101.39

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Solution

The fourth proportional to 743,721.21, 1,115,661.06 and 238,101.39 is: 357,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,721.21 : 1,115,661.06 = 238,101.39 : x
  2. Step 2: Convert to fraction form
    743,721.21/1,115,661.06 = 238,101.39/x
  3. Step 3: Cross multiply
    743,721.21x = 1,115,661.06 × 238,101.39
  4. Step 4: Simplify right side
    743,721.21x = 265,640,449,154.87
  5. Step 5: Solve for x
    x = 265,640,449,154.87/743,721.21
  6. Step 6: Final answer
    x = 357,177.46

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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.