Home / 1,131,048.64-1,560,807.60-621,747.37

Finding the Fourth Proportional to 1,131,048.64, 1,560,807.60 and 621,747.37

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Solution

The fourth proportional to 1,131,048.64, 1,560,807.60 and 621,747.37 is: 857,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,048.64 : 1,560,807.60 = 621,747.37 : x
  2. Step 2: Convert to fraction form
    1,131,048.64/1,560,807.60 = 621,747.37/x
  3. Step 3: Cross multiply
    1,131,048.64x = 1,560,807.60 × 621,747.37
  4. Step 4: Simplify right side
    1,131,048.64x = 970,428,019,995.47
  5. Step 5: Solve for x
    x = 970,428,019,995.47/1,131,048.64
  6. Step 6: Final answer
    x = 857,989.64

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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.