Home / 1,242,997.64-1,715,319.78-699,133.28

Finding the Fourth Proportional to 1,242,997.64, 1,715,319.78 and 699,133.28

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Solution

The fourth proportional to 1,242,997.64, 1,715,319.78 and 699,133.28 is: 964,794.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,997.64 : 1,715,319.78 = 699,133.28 : x
  2. Step 2: Convert to fraction form
    1,242,997.64/1,715,319.78 = 699,133.28/x
  3. Step 3: Cross multiply
    1,242,997.64x = 1,715,319.78 × 699,133.28
  4. Step 4: Simplify right side
    1,242,997.64x = 1,199,237,144,040.28
  5. Step 5: Solve for x
    x = 1,199,237,144,040.28/1,242,997.64
  6. Step 6: Final answer
    x = 964,794.39

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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.