Home / 1,941,682.80-2,912,005.80-679,378.80

Finding the Fourth Proportional to 1,941,682.80, 2,912,005.80 and 679,378.80

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Solution

The fourth proportional to 1,941,682.80, 2,912,005.80 and 679,378.80 is: 1,018,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,682.80 : 2,912,005.80 = 679,378.80 : x
  2. Step 2: Convert to fraction form
    1,941,682.80/2,912,005.80 = 679,378.80/x
  3. Step 3: Cross multiply
    1,941,682.80x = 2,912,005.80 × 679,378.80
  4. Step 4: Simplify right side
    1,941,682.80x = 1,978,355,005,997.04
  5. Step 5: Solve for x
    x = 1,978,355,005,997.04/1,941,682.80
  6. Step 6: Final answer
    x = 1,018,886.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.