Home / 2,161,878.45-3,242,951.40-722,691.36

Finding the Fourth Proportional to 2,161,878.45, 3,242,951.40 and 722,691.36

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Solution

The fourth proportional to 2,161,878.45, 3,242,951.40 and 722,691.36 is: 1,084,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,878.45 : 3,242,951.40 = 722,691.36 : x
  2. Step 2: Convert to fraction form
    2,161,878.45/3,242,951.40 = 722,691.36/x
  3. Step 3: Cross multiply
    2,161,878.45x = 3,242,951.40 × 722,691.36
  4. Step 4: Simplify right side
    2,161,878.45x = 2,343,652,960,390.00
  5. Step 5: Solve for x
    x = 2,343,652,960,390.00/2,161,878.45
  6. Step 6: Final answer
    x = 1,084,081.74

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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.