Home / 1,118,118.15-1,542,997.22-628,019.55

Finding the Fourth Proportional to 1,118,118.15, 1,542,997.22 and 628,019.55

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Solution

The fourth proportional to 1,118,118.15, 1,542,997.22 and 628,019.55 is: 866,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,118.15 : 1,542,997.22 = 628,019.55 : x
  2. Step 2: Convert to fraction form
    1,118,118.15/1,542,997.22 = 628,019.55/x
  3. Step 3: Cross multiply
    1,118,118.15x = 1,542,997.22 × 628,019.55
  4. Step 4: Simplify right side
    1,118,118.15x = 969,032,416,615.55
  5. Step 5: Solve for x
    x = 969,032,416,615.55/1,118,118.15
  6. Step 6: Final answer
    x = 866,663.70

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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.