Home / 768,139.61-1,152,264.78-294,824.97

Finding the Fourth Proportional to 768,139.61, 1,152,264.78 and 294,824.97

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Solution

The fourth proportional to 768,139.61, 1,152,264.78 and 294,824.97 is: 442,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,139.61 : 1,152,264.78 = 294,824.97 : x
  2. Step 2: Convert to fraction form
    768,139.61/1,152,264.78 = 294,824.97/x
  3. Step 3: Cross multiply
    768,139.61x = 1,152,264.78 × 294,824.97
  4. Step 4: Simplify right side
    768,139.61x = 339,716,428,658.33
  5. Step 5: Solve for x
    x = 339,716,428,658.33/768,139.61
  6. Step 6: Final answer
    x = 442,258.70

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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.