Home / 782,986.68-1,080,485.46-443,457.36

Finding the Fourth Proportional to 782,986.68, 1,080,485.46 and 443,457.36

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Solution

The fourth proportional to 782,986.68, 1,080,485.46 and 443,457.36 is: 611,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,986.68 : 1,080,485.46 = 443,457.36 : x
  2. Step 2: Convert to fraction form
    782,986.68/1,080,485.46 = 443,457.36/x
  3. Step 3: Cross multiply
    782,986.68x = 1,080,485.46 × 443,457.36
  4. Step 4: Simplify right side
    782,986.68x = 479,149,229,609.99
  5. Step 5: Solve for x
    x = 479,149,229,609.99/782,986.68
  6. Step 6: Final answer
    x = 611,950.68

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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.