Home / 919,727.36-1,268,138.13-629,478.98

Finding the Fourth Proportional to 919,727.36, 1,268,138.13 and 629,478.98

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Solution

The fourth proportional to 919,727.36, 1,268,138.13 and 629,478.98 is: 867,937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,727.36 : 1,268,138.13 = 629,478.98 : x
  2. Step 2: Convert to fraction form
    919,727.36/1,268,138.13 = 629,478.98/x
  3. Step 3: Cross multiply
    919,727.36x = 1,268,138.13 × 629,478.98
  4. Step 4: Simplify right side
    919,727.36x = 798,266,292,625.79
  5. Step 5: Solve for x
    x = 798,266,292,625.79/919,727.36
  6. Step 6: Final answer
    x = 867,937.97

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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.