Home / 2,138,483.52-2,950,380.68-1,220,052.87

Finding the Fourth Proportional to 2,138,483.52, 2,950,380.68 and 1,220,052.87

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Solution

The fourth proportional to 2,138,483.52, 2,950,380.68 and 1,220,052.87 is: 1,683,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,483.52 : 2,950,380.68 = 1,220,052.87 : x
  2. Step 2: Convert to fraction form
    2,138,483.52/2,950,380.68 = 1,220,052.87/x
  3. Step 3: Cross multiply
    2,138,483.52x = 2,950,380.68 × 1,220,052.87
  4. Step 4: Simplify right side
    2,138,483.52x = 3,599,620,401,474.65
  5. Step 5: Solve for x
    x = 3,599,620,401,474.65/2,138,483.52
  6. Step 6: Final answer
    x = 1,683,258.43

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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.