Home / 1,438,716.85-1,985,429.36-794,137.21

Finding the Fourth Proportional to 1,438,716.85, 1,985,429.36 and 794,137.21

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Solution

The fourth proportional to 1,438,716.85, 1,985,429.36 and 794,137.21 is: 1,095,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,716.85 : 1,985,429.36 = 794,137.21 : x
  2. Step 2: Convert to fraction form
    1,438,716.85/1,985,429.36 = 794,137.21/x
  3. Step 3: Cross multiply
    1,438,716.85x = 1,985,429.36 × 794,137.21
  4. Step 4: Simplify right side
    1,438,716.85x = 1,576,703,318,704.65
  5. Step 5: Solve for x
    x = 1,576,703,318,704.65/1,438,716.85
  6. Step 6: Final answer
    x = 1,095,909.40

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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.