Home / 792,127.80-1,188,774.90-319,152.60

Finding the Fourth Proportional to 792,127.80, 1,188,774.90 and 319,152.60

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Solution

The fourth proportional to 792,127.80, 1,188,774.90 and 319,152.60 is: 478,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,127.80 : 1,188,774.90 = 319,152.60 : x
  2. Step 2: Convert to fraction form
    792,127.80/1,188,774.90 = 319,152.60/x
  3. Step 3: Cross multiply
    792,127.80x = 1,188,774.90 × 319,152.60
  4. Step 4: Simplify right side
    792,127.80x = 379,400,600,149.74
  5. Step 5: Solve for x
    x = 379,400,600,149.74/792,127.80
  6. Step 6: Final answer
    x = 478,963.87

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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.