Home / 1,242,213.78-1,714,315.83-698,520.72

Finding the Fourth Proportional to 1,242,213.78, 1,714,315.83 and 698,520.72

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Solution

The fourth proportional to 1,242,213.78, 1,714,315.83 and 698,520.72 is: 963,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,213.78 : 1,714,315.83 = 698,520.72 : x
  2. Step 2: Convert to fraction form
    1,242,213.78/1,714,315.83 = 698,520.72/x
  3. Step 3: Cross multiply
    1,242,213.78x = 1,714,315.83 × 698,520.72
  4. Step 4: Simplify right side
    1,242,213.78x = 1,197,485,127,879.00
  5. Step 5: Solve for x
    x = 1,197,485,127,879.00/1,242,213.78
  6. Step 6: Final answer
    x = 963,992.79

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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.