Home / 1,321,429.32-1,823,932.62-777,739.50

Finding the Fourth Proportional to 1,321,429.32, 1,823,932.62 and 777,739.50

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Solution

The fourth proportional to 1,321,429.32, 1,823,932.62 and 777,739.50 is: 1,073,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,429.32 : 1,823,932.62 = 777,739.50 : x
  2. Step 2: Convert to fraction form
    1,321,429.32/1,823,932.62 = 777,739.50/x
  3. Step 3: Cross multiply
    1,321,429.32x = 1,823,932.62 × 777,739.50
  4. Step 4: Simplify right side
    1,321,429.32x = 1,418,544,443,912.49
  5. Step 5: Solve for x
    x = 1,418,544,443,912.49/1,321,429.32
  6. Step 6: Final answer
    x = 1,073,492.48

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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.