Home / 2,078,589.10-3,118,920.45-1,180,720.30

Finding the Fourth Proportional to 2,078,589.10, 3,118,920.45 and 1,180,720.30

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Solution

The fourth proportional to 2,078,589.10, 3,118,920.45 and 1,180,720.30 is: 1,771,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,589.10 : 3,118,920.45 = 1,180,720.30 : x
  2. Step 2: Convert to fraction form
    2,078,589.10/3,118,920.45 = 1,180,720.30/x
  3. Step 3: Cross multiply
    2,078,589.10x = 3,118,920.45 × 1,180,720.30
  4. Step 4: Simplify right side
    2,078,589.10x = 3,682,572,689,400.14
  5. Step 5: Solve for x
    x = 3,682,572,689,400.14/2,078,589.10
  6. Step 6: Final answer
    x = 1,771,669.39

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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.