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Finding the Fourth Proportional to 628,079.80, 866,747.68 and 341,604.68

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Solution

The fourth proportional to 628,079.80, 866,747.68 and 341,604.68 is: 471,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,079.80 : 866,747.68 = 341,604.68 : x
  2. Step 2: Convert to fraction form
    628,079.80/866,747.68 = 341,604.68/x
  3. Step 3: Cross multiply
    628,079.80x = 866,747.68 × 341,604.68
  4. Step 4: Simplify right side
    628,079.80x = 296,085,063,867.14
  5. Step 5: Solve for x
    x = 296,085,063,867.14/628,079.80
  6. Step 6: Final answer
    x = 471,413.13

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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.