Home / 839,838.78-1,259,499.78-240,639.39

Finding the Fourth Proportional to 839,838.78, 1,259,499.78 and 240,639.39

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Solution

The fourth proportional to 839,838.78, 1,259,499.78 and 240,639.39 is: 360,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,838.78 : 1,259,499.78 = 240,639.39 : x
  2. Step 2: Convert to fraction form
    839,838.78/1,259,499.78 = 240,639.39/x
  3. Step 3: Cross multiply
    839,838.78x = 1,259,499.78 × 240,639.39
  4. Step 4: Simplify right side
    839,838.78x = 303,085,258,764.33
  5. Step 5: Solve for x
    x = 303,085,258,764.33/839,838.78
  6. Step 6: Final answer
    x = 360,885.05

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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.