Home / 770,820.30-1,156,230.45-327,530.70

Finding the Fourth Proportional to 770,820.30, 1,156,230.45 and 327,530.70

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Solution

The fourth proportional to 770,820.30, 1,156,230.45 and 327,530.70 is: 491,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,820.30 : 1,156,230.45 = 327,530.70 : x
  2. Step 2: Convert to fraction form
    770,820.30/1,156,230.45 = 327,530.70/x
  3. Step 3: Cross multiply
    770,820.30x = 1,156,230.45 × 327,530.70
  4. Step 4: Simplify right side
    770,820.30x = 378,700,968,649.82
  5. Step 5: Solve for x
    x = 378,700,968,649.82/770,820.30
  6. Step 6: Final answer
    x = 491,296.05

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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.