Home / 1,429,467.57-2,145,053.33-518,721.09

Finding the Fourth Proportional to 1,429,467.57, 2,145,053.33 and 518,721.09

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Solution

The fourth proportional to 1,429,467.57, 2,145,053.33 and 518,721.09 is: 778,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,467.57 : 2,145,053.33 = 518,721.09 : x
  2. Step 2: Convert to fraction form
    1,429,467.57/2,145,053.33 = 518,721.09/x
  3. Step 3: Cross multiply
    1,429,467.57x = 2,145,053.33 × 518,721.09
  4. Step 4: Simplify right side
    1,429,467.57x = 1,112,684,394,698.58
  5. Step 5: Solve for x
    x = 1,112,684,394,698.58/1,429,467.57
  6. Step 6: Final answer
    x = 778,390.79

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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.