Home / 1,815,858.82-2,505,854.60-1,000,138.47

Finding the Fourth Proportional to 1,815,858.82, 2,505,854.60 and 1,000,138.47

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Solution

The fourth proportional to 1,815,858.82, 2,505,854.60 and 1,000,138.47 is: 1,380,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,858.82 : 2,505,854.60 = 1,000,138.47 : x
  2. Step 2: Convert to fraction form
    1,815,858.82/2,505,854.60 = 1,000,138.47/x
  3. Step 3: Cross multiply
    1,815,858.82x = 2,505,854.60 × 1,000,138.47
  4. Step 4: Simplify right side
    1,815,858.82x = 2,506,201,585,686.46
  5. Step 5: Solve for x
    x = 2,506,201,585,686.46/1,815,858.82
  6. Step 6: Final answer
    x = 1,380,174.25

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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.