Home / 812,242.27-1,120,216.80-608,778.37

Finding the Fourth Proportional to 812,242.27, 1,120,216.80 and 608,778.37

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Solution

The fourth proportional to 812,242.27, 1,120,216.80 and 608,778.37 is: 839,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,242.27 : 1,120,216.80 = 608,778.37 : x
  2. Step 2: Convert to fraction form
    812,242.27/1,120,216.80 = 608,778.37/x
  3. Step 3: Cross multiply
    812,242.27x = 1,120,216.80 × 608,778.37
  4. Step 4: Simplify right side
    812,242.27x = 681,963,757,550.62
  5. Step 5: Solve for x
    x = 681,963,757,550.62/812,242.27
  6. Step 6: Final answer
    x = 839,606.34

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1.5x scale

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.