Home / 1,438,722.31-1,985,436.98-794,142.64

Finding the Fourth Proportional to 1,438,722.31, 1,985,436.98 and 794,142.64

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Solution

The fourth proportional to 1,438,722.31, 1,985,436.98 and 794,142.64 is: 1,095,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,722.31 : 1,985,436.98 = 794,142.64 : x
  2. Step 2: Convert to fraction form
    1,438,722.31/1,985,436.98 = 794,142.64/x
  3. Step 3: Cross multiply
    1,438,722.31x = 1,985,436.98 × 794,142.64
  4. Step 4: Simplify right side
    1,438,722.31x = 1,576,720,161,872.59
  5. Step 5: Solve for x
    x = 1,576,720,161,872.59/1,438,722.31
  6. Step 6: Final answer
    x = 1,095,916.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.