Home / 1,777,439.12-2,665,528.11-639,895.86

Finding the Fourth Proportional to 1,777,439.12, 2,665,528.11 and 639,895.86

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Solution

The fourth proportional to 1,777,439.12, 2,665,528.11 and 639,895.86 is: 959,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777,439.12 : 2,665,528.11 = 639,895.86 : x
  2. Step 2: Convert to fraction form
    1,777,439.12/2,665,528.11 = 639,895.86/x
  3. Step 3: Cross multiply
    1,777,439.12x = 2,665,528.11 × 639,895.86
  4. Step 4: Simplify right side
    1,777,439.12x = 1,705,660,402,302.62
  5. Step 5: Solve for x
    x = 1,705,660,402,302.62/1,777,439.12
  6. Step 6: Final answer
    x = 959,616.78

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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.