Home / 784,589.82-1,082,702.07-445,050.78

Finding the Fourth Proportional to 784,589.82, 1,082,702.07 and 445,050.78

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Solution

The fourth proportional to 784,589.82, 1,082,702.07 and 445,050.78 is: 614,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,589.82 : 1,082,702.07 = 445,050.78 : x
  2. Step 2: Convert to fraction form
    784,589.82/1,082,702.07 = 445,050.78/x
  3. Step 3: Cross multiply
    784,589.82x = 1,082,702.07 × 445,050.78
  4. Step 4: Simplify right side
    784,589.82x = 481,857,400,761.12
  5. Step 5: Solve for x
    x = 481,857,400,761.12/784,589.82
  6. Step 6: Final answer
    x = 614,151.99

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Double scale
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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.