Home / 439,619.20-606,675.20-238,415.36

Finding the Fourth Proportional to 439,619.20, 606,675.20 and 238,415.36

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Solution

The fourth proportional to 439,619.20, 606,675.20 and 238,415.36 is: 329,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,619.20 : 606,675.20 = 238,415.36 : x
  2. Step 2: Convert to fraction form
    439,619.20/606,675.20 = 238,415.36/x
  3. Step 3: Cross multiply
    439,619.20x = 606,675.20 × 238,415.36
  4. Step 4: Simplify right side
    439,619.20x = 144,640,686,211.07
  5. Step 5: Solve for x
    x = 144,640,686,211.07/439,619.20
  6. Step 6: Final answer
    x = 329,013.58

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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.