Home / 840,841.76-1,260,512.66-308,238.45

Finding the Fourth Proportional to 840,841.76, 1,260,512.66 and 308,238.45

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Solution

The fourth proportional to 840,841.76, 1,260,512.66 and 308,238.45 is: 462,082.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,841.76 : 1,260,512.66 = 308,238.45 : x
  2. Step 2: Convert to fraction form
    840,841.76/1,260,512.66 = 308,238.45/x
  3. Step 3: Cross multiply
    840,841.76x = 1,260,512.66 × 308,238.45
  4. Step 4: Simplify right side
    840,841.76x = 388,538,466,982.59
  5. Step 5: Solve for x
    x = 388,538,466,982.59/840,841.76
  6. Step 6: Final answer
    x = 462,082.75

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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.