Home / 1,320,631.56-1,822,471.44-717,019.56

Finding the Fourth Proportional to 1,320,631.56, 1,822,471.44 and 717,019.56

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Solution

The fourth proportional to 1,320,631.56, 1,822,471.44 and 717,019.56 is: 989,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,631.56 : 1,822,471.44 = 717,019.56 : x
  2. Step 2: Convert to fraction form
    1,320,631.56/1,822,471.44 = 717,019.56/x
  3. Step 3: Cross multiply
    1,320,631.56x = 1,822,471.44 × 717,019.56
  4. Step 4: Simplify right side
    1,320,631.56x = 1,306,747,670,021.37
  5. Step 5: Solve for x
    x = 1,306,747,670,021.37/1,320,631.56
  6. Step 6: Final answer
    x = 989,486.93

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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.