Home / 1,305,108.78-1,957,084.58-697,749.72

Finding the Fourth Proportional to 1,305,108.78, 1,957,084.58 and 697,749.72

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Solution

The fourth proportional to 1,305,108.78, 1,957,084.58 and 697,749.72 is: 1,046,315.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,108.78 : 1,957,084.58 = 697,749.72 : x
  2. Step 2: Convert to fraction form
    1,305,108.78/1,957,084.58 = 697,749.72/x
  3. Step 3: Cross multiply
    1,305,108.78x = 1,957,084.58 × 697,749.72
  4. Step 4: Simplify right side
    1,305,108.78x = 1,365,555,217,711.32
  5. Step 5: Solve for x
    x = 1,365,555,217,711.32/1,305,108.78
  6. Step 6: Final answer
    x = 1,046,315.25

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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.