Home / 1,220,276.76-1,682,983.62-858,896.92

Finding the Fourth Proportional to 1,220,276.76, 1,682,983.62 and 858,896.92

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Solution

The fourth proportional to 1,220,276.76, 1,682,983.62 and 858,896.92 is: 1,184,575.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,276.76 : 1,682,983.62 = 858,896.92 : x
  2. Step 2: Convert to fraction form
    1,220,276.76/1,682,983.62 = 858,896.92/x
  3. Step 3: Cross multiply
    1,220,276.76x = 1,682,983.62 × 858,896.92
  4. Step 4: Simplify right side
    1,220,276.76x = 1,445,509,447,628.45
  5. Step 5: Solve for x
    x = 1,445,509,447,628.45/1,220,276.76
  6. Step 6: Final answer
    x = 1,184,575.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.