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Finding the Fourth Proportional to 439,910.34, 607,074.12 and 238,706.34

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Solution

The fourth proportional to 439,910.34, 607,074.12 and 238,706.34 is: 329,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,910.34 : 607,074.12 = 238,706.34 : x
  2. Step 2: Convert to fraction form
    439,910.34/607,074.12 = 238,706.34/x
  3. Step 3: Cross multiply
    439,910.34x = 607,074.12 × 238,706.34
  4. Step 4: Simplify right side
    439,910.34x = 144,912,439,017.39
  5. Step 5: Solve for x
    x = 144,912,439,017.39/439,910.34
  6. Step 6: Final answer
    x = 329,413.58

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1.5x scale

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.