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Finding the Fourth Proportional to 617,680.41, 852,413.40 and 345,741.54

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Solution

The fourth proportional to 617,680.41, 852,413.40 and 345,741.54 is: 477,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,680.41 : 852,413.40 = 345,741.54 : x
  2. Step 2: Convert to fraction form
    617,680.41/852,413.40 = 345,741.54/x
  3. Step 3: Cross multiply
    617,680.41x = 852,413.40 × 345,741.54
  4. Step 4: Simplify right side
    617,680.41x = 294,714,721,632.64
  5. Step 5: Solve for x
    x = 294,714,721,632.64/617,680.41
  6. Step 6: Final answer
    x = 477,131.40

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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.