Home / 1,242,995.64-1,715,317.02-699,131.28

Finding the Fourth Proportional to 1,242,995.64, 1,715,317.02 and 699,131.28

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Solution

The fourth proportional to 1,242,995.64, 1,715,317.02 and 699,131.28 is: 964,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,995.64 : 1,715,317.02 = 699,131.28 : x
  2. Step 2: Convert to fraction form
    1,242,995.64/1,715,317.02 = 699,131.28/x
  3. Step 3: Cross multiply
    1,242,995.64x = 1,715,317.02 × 699,131.28
  4. Step 4: Simplify right side
    1,242,995.64x = 1,199,231,783,798.39
  5. Step 5: Solve for x
    x = 1,199,231,783,798.39/1,242,995.64
  6. Step 6: Final answer
    x = 964,791.63

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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.