Home / 768,772.31-1,152,439.67-342,076.39

Finding the Fourth Proportional to 768,772.31, 1,152,439.67 and 342,076.39

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Solution

The fourth proportional to 768,772.31, 1,152,439.67 and 342,076.39 is: 512,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,772.31 : 1,152,439.67 = 342,076.39 : x
  2. Step 2: Convert to fraction form
    768,772.31/1,152,439.67 = 342,076.39/x
  3. Step 3: Cross multiply
    768,772.31x = 1,152,439.67 × 342,076.39
  4. Step 4: Simplify right side
    768,772.31x = 394,222,398,056.30
  5. Step 5: Solve for x
    x = 394,222,398,056.30/768,772.31
  6. Step 6: Final answer
    x = 512,794.74

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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.