Home / 839,880.28-1,259,809.48-208,799.56

Finding the Fourth Proportional to 839,880.28, 1,259,809.48 and 208,799.56

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Solution

The fourth proportional to 839,880.28, 1,259,809.48 and 208,799.56 is: 313,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,880.28 : 1,259,809.48 = 208,799.56 : x
  2. Step 2: Convert to fraction form
    839,880.28/1,259,809.48 = 208,799.56/x
  3. Step 3: Cross multiply
    839,880.28x = 1,259,809.48 × 208,799.56
  4. Step 4: Simplify right side
    839,880.28x = 263,047,665,107.83
  5. Step 5: Solve for x
    x = 263,047,665,107.83/839,880.28
  6. Step 6: Final answer
    x = 313,196.62

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1.5x scale

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.