Home / 1,361,879.70-2,042,600.85-415,030.20

Finding the Fourth Proportional to 1,361,879.70, 2,042,600.85 and 415,030.20

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Solution

The fourth proportional to 1,361,879.70, 2,042,600.85 and 415,030.20 is: 622,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,879.70 : 2,042,600.85 = 415,030.20 : x
  2. Step 2: Convert to fraction form
    1,361,879.70/2,042,600.85 = 415,030.20/x
  3. Step 3: Cross multiply
    1,361,879.70x = 2,042,600.85 × 415,030.20
  4. Step 4: Simplify right side
    1,361,879.70x = 847,741,039,295.67
  5. Step 5: Solve for x
    x = 847,741,039,295.67/1,361,879.70
  6. Step 6: Final answer
    x = 622,478.65

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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.