Home / 2,115,334.60-3,168,336.30-1,272,416.20

Finding the Fourth Proportional to 2,115,334.60, 3,168,336.30 and 1,272,416.20

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Solution

The fourth proportional to 2,115,334.60, 3,168,336.30 and 1,272,416.20 is: 1,905,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,334.60 : 3,168,336.30 = 1,272,416.20 : x
  2. Step 2: Convert to fraction form
    2,115,334.60/3,168,336.30 = 1,272,416.20/x
  3. Step 3: Cross multiply
    2,115,334.60x = 3,168,336.30 × 1,272,416.20
  4. Step 4: Simplify right side
    2,115,334.60x = 4,031,442,435,168.06
  5. Step 5: Solve for x
    x = 4,031,442,435,168.06/2,115,334.60
  6. Step 6: Final answer
    x = 1,905,817.85

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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.