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Finding the Fourth Proportional to 1,815,794.80, 2,716,693.80 and 1,185,938.80

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Solution

The fourth proportional to 1,815,794.80, 2,716,693.80 and 1,185,938.80 is: 1,774,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,794.80 : 2,716,693.80 = 1,185,938.80 : x
  2. Step 2: Convert to fraction form
    1,815,794.80/2,716,693.80 = 1,185,938.80/x
  3. Step 3: Cross multiply
    1,815,794.80x = 2,716,693.80 × 1,185,938.80
  4. Step 4: Simplify right side
    1,815,794.80x = 3,221,832,585,139.44
  5. Step 5: Solve for x
    x = 3,221,832,585,139.44/1,815,794.80
  6. Step 6: Final answer
    x = 1,774,337.38

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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.