Home / 1,618,651.90-2,427,977.85-778,843.90

Finding the Fourth Proportional to 1,618,651.90, 2,427,977.85 and 778,843.90

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Solution

The fourth proportional to 1,618,651.90, 2,427,977.85 and 778,843.90 is: 1,168,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,651.90 : 2,427,977.85 = 778,843.90 : x
  2. Step 2: Convert to fraction form
    1,618,651.90/2,427,977.85 = 778,843.90/x
  3. Step 3: Cross multiply
    1,618,651.90x = 2,427,977.85 × 778,843.90
  4. Step 4: Simplify right side
    1,618,651.90x = 1,891,015,737,807.62
  5. Step 5: Solve for x
    x = 1,891,015,737,807.62/1,618,651.90
  6. Step 6: Final answer
    x = 1,168,265.85

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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.