Home / 1,361,645.76-2,042,690.40-402,198.72

Finding the Fourth Proportional to 1,361,645.76, 2,042,690.40 and 402,198.72

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Solution

The fourth proportional to 1,361,645.76, 2,042,690.40 and 402,198.72 is: 603,363.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,645.76 : 2,042,690.40 = 402,198.72 : x
  2. Step 2: Convert to fraction form
    1,361,645.76/2,042,690.40 = 402,198.72/x
  3. Step 3: Cross multiply
    1,361,645.76x = 2,042,690.40 × 402,198.72
  4. Step 4: Simplify right side
    1,361,645.76x = 821,567,464,236.29
  5. Step 5: Solve for x
    x = 821,567,464,236.29/1,361,645.76
  6. Step 6: Final answer
    x = 603,363.58

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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.