Home / 2,105,362.56-3,157,298.64-685,153.92

Finding the Fourth Proportional to 2,105,362.56, 3,157,298.64 and 685,153.92

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Solution

The fourth proportional to 2,105,362.56, 3,157,298.64 and 685,153.92 is: 1,027,488.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,362.56 : 3,157,298.64 = 685,153.92 : x
  2. Step 2: Convert to fraction form
    2,105,362.56/3,157,298.64 = 685,153.92/x
  3. Step 3: Cross multiply
    2,105,362.56x = 3,157,298.64 × 685,153.92
  4. Step 4: Simplify right side
    2,105,362.56x = 2,163,235,539,806.67
  5. Step 5: Solve for x
    x = 2,163,235,539,806.67/2,105,362.56
  6. Step 6: Final answer
    x = 1,027,488.37

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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.