Home / 809,700.87-1,213,738.47-276,857.46

Finding the Fourth Proportional to 809,700.87, 1,213,738.47 and 276,857.46

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Solution

The fourth proportional to 809,700.87, 1,213,738.47 and 276,857.46 is: 415,008.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,700.87 : 1,213,738.47 = 276,857.46 : x
  2. Step 2: Convert to fraction form
    809,700.87/1,213,738.47 = 276,857.46/x
  3. Step 3: Cross multiply
    809,700.87x = 1,213,738.47 × 276,857.46
  4. Step 4: Simplify right side
    809,700.87x = 336,032,549,908.49
  5. Step 5: Solve for x
    x = 336,032,549,908.49/809,700.87
  6. Step 6: Final answer
    x = 415,008.26

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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.