Home / 1,239,581.92-1,860,369.44-640,718.56

Finding the Fourth Proportional to 1,239,581.92, 1,860,369.44 and 640,718.56

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Solution

The fourth proportional to 1,239,581.92, 1,860,369.44 and 640,718.56 is: 961,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,581.92 : 1,860,369.44 = 640,718.56 : x
  2. Step 2: Convert to fraction form
    1,239,581.92/1,860,369.44 = 640,718.56/x
  3. Step 3: Cross multiply
    1,239,581.92x = 1,860,369.44 × 640,718.56
  4. Step 4: Simplify right side
    1,239,581.92x = 1,191,973,228,664.81
  5. Step 5: Solve for x
    x = 1,191,973,228,664.81/1,239,581.92
  6. Step 6: Final answer
    x = 961,592.94

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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.