Home / 767,650.86-1,150,339.02-311,687.58

Finding the Fourth Proportional to 767,650.86, 1,150,339.02 and 311,687.58

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Solution

The fourth proportional to 767,650.86, 1,150,339.02 and 311,687.58 is: 467,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,650.86 : 1,150,339.02 = 311,687.58 : x
  2. Step 2: Convert to fraction form
    767,650.86/1,150,339.02 = 311,687.58/x
  3. Step 3: Cross multiply
    767,650.86x = 1,150,339.02 × 311,687.58
  4. Step 4: Simplify right side
    767,650.86x = 358,546,385,323.37
  5. Step 5: Solve for x
    x = 358,546,385,323.37/767,650.86
  6. Step 6: Final answer
    x = 467,069.61

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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.