Home / 1,185,516.24-1,777,380-386,320.56

Finding the Fourth Proportional to 1,185,516.24, 1,777,380 and 386,320.56

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Solution

The fourth proportional to 1,185,516.24, 1,777,380 and 386,320.56 is: 579,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,516.24 : 1,777,380 = 386,320.56 : x
  2. Step 2: Convert to fraction form
    1,185,516.24/1,777,380 = 386,320.56/x
  3. Step 3: Cross multiply
    1,185,516.24x = 1,777,380 × 386,320.56
  4. Step 4: Simplify right side
    1,185,516.24x = 686,638,436,932.80
  5. Step 5: Solve for x
    x = 686,638,436,932.80/1,185,516.24
  6. Step 6: Final answer
    x = 579,189.40

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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.