Home / 850,990.78-1,174,413.46-488,411.74

Finding the Fourth Proportional to 850,990.78, 1,174,413.46 and 488,411.74

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Solution

The fourth proportional to 850,990.78, 1,174,413.46 and 488,411.74 is: 674,034.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,990.78 : 1,174,413.46 = 488,411.74 : x
  2. Step 2: Convert to fraction form
    850,990.78/1,174,413.46 = 488,411.74/x
  3. Step 3: Cross multiply
    850,990.78x = 1,174,413.46 × 488,411.74
  4. Step 4: Simplify right side
    850,990.78x = 573,597,321,478.02
  5. Step 5: Solve for x
    x = 573,597,321,478.02/850,990.78
  6. Step 6: Final answer
    x = 674,034.71

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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.