Home / 1,368,444.88-1,888,421.32-764,889.04

Finding the Fourth Proportional to 1,368,444.88, 1,888,421.32 and 764,889.04

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Solution

The fourth proportional to 1,368,444.88, 1,888,421.32 and 764,889.04 is: 1,055,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,444.88 : 1,888,421.32 = 764,889.04 : x
  2. Step 2: Convert to fraction form
    1,368,444.88/1,888,421.32 = 764,889.04/x
  3. Step 3: Cross multiply
    1,368,444.88x = 1,888,421.32 × 764,889.04
  4. Step 4: Simplify right side
    1,368,444.88x = 1,444,432,770,570.33
  5. Step 5: Solve for x
    x = 1,444,432,770,570.33/1,368,444.88
  6. Step 6: Final answer
    x = 1,055,528.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.