Home / 739,980.24-1,021,175.94-400,448.52

Finding the Fourth Proportional to 739,980.24, 1,021,175.94 and 400,448.52

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Solution

The fourth proportional to 739,980.24, 1,021,175.94 and 400,448.52 is: 552,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,980.24 : 1,021,175.94 = 400,448.52 : x
  2. Step 2: Convert to fraction form
    739,980.24/1,021,175.94 = 400,448.52/x
  3. Step 3: Cross multiply
    739,980.24x = 1,021,175.94 × 400,448.52
  4. Step 4: Simplify right side
    739,980.24x = 408,928,393,832.61
  5. Step 5: Solve for x
    x = 408,928,393,832.61/739,980.24
  6. Step 6: Final answer
    x = 552,620.69

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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.