Home / 2,111,922.28-3,168,199.54-764,400.16

Finding the Fourth Proportional to 2,111,922.28, 3,168,199.54 and 764,400.16

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Solution

The fourth proportional to 2,111,922.28, 3,168,199.54 and 764,400.16 is: 1,146,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111,922.28 : 3,168,199.54 = 764,400.16 : x
  2. Step 2: Convert to fraction form
    2,111,922.28/3,168,199.54 = 764,400.16/x
  3. Step 3: Cross multiply
    2,111,922.28x = 3,168,199.54 × 764,400.16
  4. Step 4: Simplify right side
    2,111,922.28x = 2,421,772,235,287.93
  5. Step 5: Solve for x
    x = 2,421,772,235,287.93/2,111,922.28
  6. Step 6: Final answer
    x = 1,146,714.66

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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.