Home / 1,389,576.10-2,084,479.35-442,920.10

Finding the Fourth Proportional to 1,389,576.10, 2,084,479.35 and 442,920.10

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Solution

The fourth proportional to 1,389,576.10, 2,084,479.35 and 442,920.10 is: 664,416.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,576.10 : 2,084,479.35 = 442,920.10 : x
  2. Step 2: Convert to fraction form
    1,389,576.10/2,084,479.35 = 442,920.10/x
  3. Step 3: Cross multiply
    1,389,576.10x = 2,084,479.35 × 442,920.10
  4. Step 4: Simplify right side
    1,389,576.10x = 923,257,802,149.94
  5. Step 5: Solve for x
    x = 923,257,802,149.94/1,389,576.10
  6. Step 6: Final answer
    x = 664,416.87

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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.