Home / 1,415,229.55-2,120,880.34-644,844.54

Finding the Fourth Proportional to 1,415,229.55, 2,120,880.34 and 644,844.54

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Solution

The fourth proportional to 1,415,229.55, 2,120,880.34 and 644,844.54 is: 966,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,229.55 : 2,120,880.34 = 644,844.54 : x
  2. Step 2: Convert to fraction form
    1,415,229.55/2,120,880.34 = 644,844.54/x
  3. Step 3: Cross multiply
    1,415,229.55x = 2,120,880.34 × 644,844.54
  4. Step 4: Simplify right side
    1,415,229.55x = 1,367,638,107,242.34
  5. Step 5: Solve for x
    x = 1,367,638,107,242.34/1,415,229.55
  6. Step 6: Final answer
    x = 966,371.93

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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.