Home / 2,157,479.60-3,238,552.20-1,212,695.60

Finding the Fourth Proportional to 2,157,479.60, 3,238,552.20 and 1,212,695.60

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Solution

The fourth proportional to 2,157,479.60, 3,238,552.20 and 1,212,695.60 is: 1,820,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,479.60 : 3,238,552.20 = 1,212,695.60 : x
  2. Step 2: Convert to fraction form
    2,157,479.60/3,238,552.20 = 1,212,695.60/x
  3. Step 3: Cross multiply
    2,157,479.60x = 3,238,552.20 × 1,212,695.60
  4. Step 4: Simplify right side
    2,157,479.60x = 3,927,378,003,310.32
  5. Step 5: Solve for x
    x = 3,927,378,003,310.32/2,157,479.60
  6. Step 6: Final answer
    x = 1,820,354.64

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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.