Home / 3,138,240.30-4,707,360.45-2,221,504.60

Finding the Fourth Proportional to 3,138,240.30, 4,707,360.45 and 2,221,504.60

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Solution

The fourth proportional to 3,138,240.30, 4,707,360.45 and 2,221,504.60 is: 3,332,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,240.30 : 4,707,360.45 = 2,221,504.60 : x
  2. Step 2: Convert to fraction form
    3,138,240.30/4,707,360.45 = 2,221,504.60/x
  3. Step 3: Cross multiply
    3,138,240.30x = 4,707,360.45 × 2,221,504.60
  4. Step 4: Simplify right side
    3,138,240.30x = 10,457,422,893,533.07
  5. Step 5: Solve for x
    x = 10,457,422,893,533.07/3,138,240.30
  6. Step 6: Final answer
    x = 3,332,256.90

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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.