Home / 1,286,973.05-1,930,470.80-327,429.50

Finding the Fourth Proportional to 1,286,973.05, 1,930,470.80 and 327,429.50

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Solution

The fourth proportional to 1,286,973.05, 1,930,470.80 and 327,429.50 is: 491,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,973.05 : 1,930,470.80 = 327,429.50 : x
  2. Step 2: Convert to fraction form
    1,286,973.05/1,930,470.80 = 327,429.50/x
  3. Step 3: Cross multiply
    1,286,973.05x = 1,930,470.80 × 327,429.50
  4. Step 4: Simplify right side
    1,286,973.05x = 632,093,077,519.10
  5. Step 5: Solve for x
    x = 632,093,077,519.10/1,286,973.05
  6. Step 6: Final answer
    x = 491,147.10

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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.