Home / 782,840.23-1,172,266.52-515,791.33

Finding the Fourth Proportional to 782,840.23, 1,172,266.52 and 515,791.33

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Solution

The fourth proportional to 782,840.23, 1,172,266.52 and 515,791.33 is: 772,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,840.23 : 1,172,266.52 = 515,791.33 : x
  2. Step 2: Convert to fraction form
    782,840.23/1,172,266.52 = 515,791.33/x
  3. Step 3: Cross multiply
    782,840.23x = 1,172,266.52 × 515,791.33
  4. Step 4: Simplify right side
    782,840.23x = 604,644,901,955.65
  5. Step 5: Solve for x
    x = 604,644,901,955.65/782,840.23
  6. Step 6: Final answer
    x = 772,373.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.