Home / 1,500,221.10-2,070,288.27-821,149.50

Finding the Fourth Proportional to 1,500,221.10, 2,070,288.27 and 821,149.50

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Solution

The fourth proportional to 1,500,221.10, 2,070,288.27 and 821,149.50 is: 1,133,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,221.10 : 2,070,288.27 = 821,149.50 : x
  2. Step 2: Convert to fraction form
    1,500,221.10/2,070,288.27 = 821,149.50/x
  3. Step 3: Cross multiply
    1,500,221.10x = 2,070,288.27 × 821,149.50
  4. Step 4: Simplify right side
    1,500,221.10x = 1,700,016,177,766.37
  5. Step 5: Solve for x
    x = 1,700,016,177,766.37/1,500,221.10
  6. Step 6: Final answer
    x = 1,133,177.09

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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.