Home / 1,228,665.36-1,843,828.47-429,953.97

Finding the Fourth Proportional to 1,228,665.36, 1,843,828.47 and 429,953.97

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Solution

The fourth proportional to 1,228,665.36, 1,843,828.47 and 429,953.97 is: 645,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,665.36 : 1,843,828.47 = 429,953.97 : x
  2. Step 2: Convert to fraction form
    1,228,665.36/1,843,828.47 = 429,953.97/x
  3. Step 3: Cross multiply
    1,228,665.36x = 1,843,828.47 × 429,953.97
  4. Step 4: Simplify right side
    1,228,665.36x = 792,761,370,675.53
  5. Step 5: Solve for x
    x = 792,761,370,675.53/1,228,665.36
  6. Step 6: Final answer
    x = 645,221.55

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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.