Home / 1,320,491.84-1,822,286.20-776,650.56

Finding the Fourth Proportional to 1,320,491.84, 1,822,286.20 and 776,650.56

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Solution

The fourth proportional to 1,320,491.84, 1,822,286.20 and 776,650.56 is: 1,071,782.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,491.84 : 1,822,286.20 = 776,650.56 : x
  2. Step 2: Convert to fraction form
    1,320,491.84/1,822,286.20 = 776,650.56/x
  3. Step 3: Cross multiply
    1,320,491.84x = 1,822,286.20 × 776,650.56
  4. Step 4: Simplify right side
    1,320,491.84x = 1,415,279,597,710.27
  5. Step 5: Solve for x
    x = 1,415,279,597,710.27/1,320,491.84
  6. Step 6: Final answer
    x = 1,071,782.16

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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.