Home / 1,097,729.80-1,643,387.10-782,801.80

Finding the Fourth Proportional to 1,097,729.80, 1,643,387.10 and 782,801.80

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Solution

The fourth proportional to 1,097,729.80, 1,643,387.10 and 782,801.80 is: 1,171,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,729.80 : 1,643,387.10 = 782,801.80 : x
  2. Step 2: Convert to fraction form
    1,097,729.80/1,643,387.10 = 782,801.80/x
  3. Step 3: Cross multiply
    1,097,729.80x = 1,643,387.10 × 782,801.80
  4. Step 4: Simplify right side
    1,097,729.80x = 1,286,446,379,976.78
  5. Step 5: Solve for x
    x = 1,286,446,379,976.78/1,097,729.80
  6. Step 6: Final answer
    x = 1,171,915.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.