Home / 1,438,721.93-1,985,436.47-794,142.27

Finding the Fourth Proportional to 1,438,721.93, 1,985,436.47 and 794,142.27

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Solution

The fourth proportional to 1,438,721.93, 1,985,436.47 and 794,142.27 is: 1,095,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,721.93 : 1,985,436.47 = 794,142.27 : x
  2. Step 2: Convert to fraction form
    1,438,721.93/1,985,436.47 = 794,142.27/x
  3. Step 3: Cross multiply
    1,438,721.93x = 1,985,436.47 × 794,142.27
  4. Step 4: Simplify right side
    1,438,721.93x = 1,576,719,027,211.94
  5. Step 5: Solve for x
    x = 1,576,719,027,211.94/1,438,721.93
  6. Step 6: Final answer
    x = 1,095,916.45

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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.