Home / 1,401,336.30-2,100,371.34-643,257.84

Finding the Fourth Proportional to 1,401,336.30, 2,100,371.34 and 643,257.84

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Solution

The fourth proportional to 1,401,336.30, 2,100,371.34 and 643,257.84 is: 964,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,336.30 : 2,100,371.34 = 643,257.84 : x
  2. Step 2: Convert to fraction form
    1,401,336.30/2,100,371.34 = 643,257.84/x
  3. Step 3: Cross multiply
    1,401,336.30x = 2,100,371.34 × 643,257.84
  4. Step 4: Simplify right side
    1,401,336.30x = 1,351,080,331,366.31
  5. Step 5: Solve for x
    x = 1,351,080,331,366.31/1,401,336.30
  6. Step 6: Final answer
    x = 964,137.11

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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.