Home / 739,163.88-1,020,048.53-399,634.56

Finding the Fourth Proportional to 739,163.88, 1,020,048.53 and 399,634.56

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Solution

The fourth proportional to 739,163.88, 1,020,048.53 and 399,634.56 is: 551,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,163.88 : 1,020,048.53 = 399,634.56 : x
  2. Step 2: Convert to fraction form
    739,163.88/1,020,048.53 = 399,634.56/x
  3. Step 3: Cross multiply
    739,163.88x = 1,020,048.53 × 399,634.56
  4. Step 4: Simplify right side
    739,163.88x = 407,646,643,467.02
  5. Step 5: Solve for x
    x = 407,646,643,467.02/739,163.88
  6. Step 6: Final answer
    x = 551,496.97

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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.