Home / 1,389,926.38-2,085,045.09-443,077.42

Finding the Fourth Proportional to 1,389,926.38, 2,085,045.09 and 443,077.42

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Solution

The fourth proportional to 1,389,926.38, 2,085,045.09 and 443,077.42 is: 664,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,926.38 : 2,085,045.09 = 443,077.42 : x
  2. Step 2: Convert to fraction form
    1,389,926.38/2,085,045.09 = 443,077.42/x
  3. Step 3: Cross multiply
    1,389,926.38x = 2,085,045.09 × 443,077.42
  4. Step 4: Simplify right side
    1,389,926.38x = 923,836,393,848.26
  5. Step 5: Solve for x
    x = 923,836,393,848.26/1,389,926.38
  6. Step 6: Final answer
    x = 664,665.70

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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.