Home / 1,389,930.19-2,085,050.81-443,081.23

Finding the Fourth Proportional to 1,389,930.19, 2,085,050.81 and 443,081.23

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Solution

The fourth proportional to 1,389,930.19, 2,085,050.81 and 443,081.23 is: 664,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,930.19 : 2,085,050.81 = 443,081.23 : x
  2. Step 2: Convert to fraction form
    1,389,930.19/2,085,050.81 = 443,081.23/x
  3. Step 3: Cross multiply
    1,389,930.19x = 2,085,050.81 × 443,081.23
  4. Step 4: Simplify right side
    1,389,930.19x = 923,846,877,507.30
  5. Step 5: Solve for x
    x = 923,846,877,507.30/1,389,930.19
  6. Step 6: Final answer
    x = 664,671.42

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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.