Home / 1,226,238.72-1,838,821.84-618,653.20

Finding the Fourth Proportional to 1,226,238.72, 1,838,821.84 and 618,653.20

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Solution

The fourth proportional to 1,226,238.72, 1,838,821.84 and 618,653.20 is: 927,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,238.72 : 1,838,821.84 = 618,653.20 : x
  2. Step 2: Convert to fraction form
    1,226,238.72/1,838,821.84 = 618,653.20/x
  3. Step 3: Cross multiply
    1,226,238.72x = 1,838,821.84 × 618,653.20
  4. Step 4: Simplify right side
    1,226,238.72x = 1,137,593,015,545.89
  5. Step 5: Solve for x
    x = 1,137,593,015,545.89/1,226,238.72
  6. Step 6: Final answer
    x = 927,709.26

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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.