Home / 1,438,911.12-1,985,645.31-794,317.47

Finding the Fourth Proportional to 1,438,911.12, 1,985,645.31 and 794,317.47

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Solution

The fourth proportional to 1,438,911.12, 1,985,645.31 and 794,317.47 is: 1,096,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,911.12 : 1,985,645.31 = 794,317.47 : x
  2. Step 2: Convert to fraction form
    1,438,911.12/1,985,645.31 = 794,317.47/x
  3. Step 3: Cross multiply
    1,438,911.12x = 1,985,645.31 × 794,317.47
  4. Step 4: Simplify right side
    1,438,911.12x = 1,577,232,758,956.57
  5. Step 5: Solve for x
    x = 1,577,232,758,956.57/1,438,911.12
  6. Step 6: Final answer
    x = 1,096,129.38

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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.