Home / 784,614.82-1,082,736.57-445,075.78

Finding the Fourth Proportional to 784,614.82, 1,082,736.57 and 445,075.78

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Solution

The fourth proportional to 784,614.82, 1,082,736.57 and 445,075.78 is: 614,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,614.82 : 1,082,736.57 = 445,075.78 : x
  2. Step 2: Convert to fraction form
    784,614.82/1,082,736.57 = 445,075.78/x
  3. Step 3: Cross multiply
    784,614.82x = 1,082,736.57 × 445,075.78
  4. Step 4: Simplify right side
    784,614.82x = 481,899,823,427.28
  5. Step 5: Solve for x
    x = 481,899,823,427.28/784,614.82
  6. Step 6: Final answer
    x = 614,186.49

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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.