Home / 1,521,583.66-2,099,759.79-842,505.58

Finding the Fourth Proportional to 1,521,583.66, 2,099,759.79 and 842,505.58

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Solution

The fourth proportional to 1,521,583.66, 2,099,759.79 and 842,505.58 is: 1,162,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,583.66 : 2,099,759.79 = 842,505.58 : x
  2. Step 2: Convert to fraction form
    1,521,583.66/2,099,759.79 = 842,505.58/x
  3. Step 3: Cross multiply
    1,521,583.66x = 2,099,759.79 × 842,505.58
  4. Step 4: Simplify right side
    1,521,583.66x = 1,769,059,339,734.63
  5. Step 5: Solve for x
    x = 1,769,059,339,734.63/1,521,583.66
  6. Step 6: Final answer
    x = 1,162,643.49

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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.