Home / 839,881.28-1,259,810.98-208,800.56

Finding the Fourth Proportional to 839,881.28, 1,259,810.98 and 208,800.56

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Solution

The fourth proportional to 839,881.28, 1,259,810.98 and 208,800.56 is: 313,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,881.28 : 1,259,810.98 = 208,800.56 : x
  2. Step 2: Convert to fraction form
    839,881.28/1,259,810.98 = 208,800.56/x
  3. Step 3: Cross multiply
    839,881.28x = 1,259,810.98 × 208,800.56
  4. Step 4: Simplify right side
    839,881.28x = 263,049,238,118.15
  5. Step 5: Solve for x
    x = 263,049,238,118.15/839,881.28
  6. Step 6: Final answer
    x = 313,198.12

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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.