Home / 1,815,139.56-2,722,709.34-485,409

Finding the Fourth Proportional to 1,815,139.56, 2,722,709.34 and 485,409

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Solution

The fourth proportional to 1,815,139.56, 2,722,709.34 and 485,409 is: 728,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,139.56 : 2,722,709.34 = 485,409 : x
  2. Step 2: Convert to fraction form
    1,815,139.56/2,722,709.34 = 485,409/x
  3. Step 3: Cross multiply
    1,815,139.56x = 2,722,709.34 × 485,409
  4. Step 4: Simplify right side
    1,815,139.56x = 1,321,627,618,020.06
  5. Step 5: Solve for x
    x = 1,321,627,618,020.06/1,815,139.56
  6. Step 6: Final answer
    x = 728,113.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.