Home / 2,079,530.10-3,119,295.15-1,278,213.30

Finding the Fourth Proportional to 2,079,530.10, 3,119,295.15 and 1,278,213.30

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Solution

The fourth proportional to 2,079,530.10, 3,119,295.15 and 1,278,213.30 is: 1,917,319.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,530.10 : 3,119,295.15 = 1,278,213.30 : x
  2. Step 2: Convert to fraction form
    2,079,530.10/3,119,295.15 = 1,278,213.30/x
  3. Step 3: Cross multiply
    2,079,530.10x = 3,119,295.15 × 1,278,213.30
  4. Step 4: Simplify right side
    2,079,530.10x = 3,987,124,547,355.50
  5. Step 5: Solve for x
    x = 3,987,124,547,355.50/2,079,530.10
  6. Step 6: Final answer
    x = 1,917,319.95

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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.