Home / 1,642,636-2,265,587.85-1,413,578.73

Finding the Fourth Proportional to 1,642,636, 2,265,587.85 and 1,413,578.73

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Solution

The fourth proportional to 1,642,636, 2,265,587.85 and 1,413,578.73 is: 1,949,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,636 : 2,265,587.85 = 1,413,578.73 : x
  2. Step 2: Convert to fraction form
    1,642,636/2,265,587.85 = 1,413,578.73/x
  3. Step 3: Cross multiply
    1,642,636x = 2,265,587.85 × 1,413,578.73
  4. Step 4: Simplify right side
    1,642,636x = 3,202,586,795,706.43
  5. Step 5: Solve for x
    x = 3,202,586,795,706.43/1,642,636
  6. Step 6: Final answer
    x = 1,949,663.10

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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.