Home / 1,438,720.11-1,985,433.86-794,140.47

Finding the Fourth Proportional to 1,438,720.11, 1,985,433.86 and 794,140.47

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Solution

The fourth proportional to 1,438,720.11, 1,985,433.86 and 794,140.47 is: 1,095,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,720.11 : 1,985,433.86 = 794,140.47 : x
  2. Step 2: Convert to fraction form
    1,438,720.11/1,985,433.86 = 794,140.47/x
  3. Step 3: Cross multiply
    1,438,720.11x = 1,985,433.86 × 794,140.47
  4. Step 4: Simplify right side
    1,438,720.11x = 1,576,713,374,763.61
  5. Step 5: Solve for x
    x = 1,576,713,374,763.61/1,438,720.11
  6. Step 6: Final answer
    x = 1,095,913.91

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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.