Home / 1,977,420.34-2,728,815.49-1,161,698.38

Finding the Fourth Proportional to 1,977,420.34, 2,728,815.49 and 1,161,698.38

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Solution

The fourth proportional to 1,977,420.34, 2,728,815.49 and 1,161,698.38 is: 1,603,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,420.34 : 2,728,815.49 = 1,161,698.38 : x
  2. Step 2: Convert to fraction form
    1,977,420.34/2,728,815.49 = 1,161,698.38/x
  3. Step 3: Cross multiply
    1,977,420.34x = 2,728,815.49 × 1,161,698.38
  4. Step 4: Simplify right side
    1,977,420.34x = 3,170,060,514,599.34
  5. Step 5: Solve for x
    x = 3,170,060,514,599.34/1,977,420.34
  6. Step 6: Final answer
    x = 1,603,129.32

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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.