Home / 784,613.82-1,082,735.19-445,074.78

Finding the Fourth Proportional to 784,613.82, 1,082,735.19 and 445,074.78

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Solution

The fourth proportional to 784,613.82, 1,082,735.19 and 445,074.78 is: 614,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,613.82 : 1,082,735.19 = 445,074.78 : x
  2. Step 2: Convert to fraction form
    784,613.82/1,082,735.19 = 445,074.78/x
  3. Step 3: Cross multiply
    784,613.82x = 1,082,735.19 × 445,074.78
  4. Step 4: Simplify right side
    784,613.82x = 481,898,126,487.51
  5. Step 5: Solve for x
    x = 481,898,126,487.51/784,613.82
  6. Step 6: Final answer
    x = 614,185.11

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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.