Home / 1,320,485.84-1,822,277.92-776,644.56

Finding the Fourth Proportional to 1,320,485.84, 1,822,277.92 and 776,644.56

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Solution

The fourth proportional to 1,320,485.84, 1,822,277.92 and 776,644.56 is: 1,071,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,485.84 : 1,822,277.92 = 776,644.56 : x
  2. Step 2: Convert to fraction form
    1,320,485.84/1,822,277.92 = 776,644.56/x
  3. Step 3: Cross multiply
    1,320,485.84x = 1,822,277.92 × 776,644.56
  4. Step 4: Simplify right side
    1,320,485.84x = 1,415,262,233,376.12
  5. Step 5: Solve for x
    x = 1,415,262,233,376.12/1,320,485.84
  6. Step 6: Final answer
    x = 1,071,773.88

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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.