Home / 1,247,903.90-1,872,201.45-827,999.90

Finding the Fourth Proportional to 1,247,903.90, 1,872,201.45 and 827,999.90

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Solution

The fourth proportional to 1,247,903.90, 1,872,201.45 and 827,999.90 is: 1,242,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,903.90 : 1,872,201.45 = 827,999.90 : x
  2. Step 2: Convert to fraction form
    1,247,903.90/1,872,201.45 = 827,999.90/x
  3. Step 3: Cross multiply
    1,247,903.90x = 1,872,201.45 × 827,999.90
  4. Step 4: Simplify right side
    1,247,903.90x = 1,550,182,613,379.86
  5. Step 5: Solve for x
    x = 1,550,182,613,379.86/1,247,903.90
  6. Step 6: Final answer
    x = 1,242,229.16

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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.