Home / 1,284,609.38-1,926,839.95-386,031.83

Finding the Fourth Proportional to 1,284,609.38, 1,926,839.95 and 386,031.83

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Solution

The fourth proportional to 1,284,609.38, 1,926,839.95 and 386,031.83 is: 579,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,609.38 : 1,926,839.95 = 386,031.83 : x
  2. Step 2: Convert to fraction form
    1,284,609.38/1,926,839.95 = 386,031.83/x
  3. Step 3: Cross multiply
    1,284,609.38x = 1,926,839.95 × 386,031.83
  4. Step 4: Simplify right side
    1,284,609.38x = 743,821,541,416.33
  5. Step 5: Solve for x
    x = 743,821,541,416.33/1,284,609.38
  6. Step 6: Final answer
    x = 579,025.47

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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.