Home / 923,726.78-1,274,740.45-515,825.31

Finding the Fourth Proportional to 923,726.78, 1,274,740.45 and 515,825.31

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Solution

The fourth proportional to 923,726.78, 1,274,740.45 and 515,825.31 is: 711,837.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,726.78 : 1,274,740.45 = 515,825.31 : x
  2. Step 2: Convert to fraction form
    923,726.78/1,274,740.45 = 515,825.31/x
  3. Step 3: Cross multiply
    923,726.78x = 1,274,740.45 × 515,825.31
  4. Step 4: Simplify right side
    923,726.78x = 657,543,394,183.02
  5. Step 5: Solve for x
    x = 657,543,394,183.02/923,726.78
  6. Step 6: Final answer
    x = 711,837.53

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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.