Home / 812,158.38-1,212,424.88-705,899.34

Finding the Fourth Proportional to 812,158.38, 1,212,424.88 and 705,899.34

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Solution

The fourth proportional to 812,158.38, 1,212,424.88 and 705,899.34 is: 1,053,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,158.38 : 1,212,424.88 = 705,899.34 : x
  2. Step 2: Convert to fraction form
    812,158.38/1,212,424.88 = 705,899.34/x
  3. Step 3: Cross multiply
    812,158.38x = 1,212,424.88 × 705,899.34
  4. Step 4: Simplify right side
    812,158.38x = 855,849,919,062.08
  5. Step 5: Solve for x
    x = 855,849,919,062.08/812,158.38
  6. Step 6: Final answer
    x = 1,053,796.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.