Home / 782,835.96-1,080,313.56-443,369.82

Finding the Fourth Proportional to 782,835.96, 1,080,313.56 and 443,369.82

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Solution

The fourth proportional to 782,835.96, 1,080,313.56 and 443,369.82 is: 611,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,835.96 : 1,080,313.56 = 443,369.82 : x
  2. Step 2: Convert to fraction form
    782,835.96/1,080,313.56 = 443,369.82/x
  3. Step 3: Cross multiply
    782,835.96x = 1,080,313.56 × 443,369.82
  4. Step 4: Simplify right side
    782,835.96x = 478,978,428,640.76
  5. Step 5: Solve for x
    x = 478,978,428,640.76/782,835.96
  6. Step 6: Final answer
    x = 611,850.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.