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Finding the Fourth Proportional to 479,273.90, 661,400.19 and 264,413.88

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Solution

The fourth proportional to 479,273.90, 661,400.19 and 264,413.88 is: 364,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,273.90 : 661,400.19 = 264,413.88 : x
  2. Step 2: Convert to fraction form
    479,273.90/661,400.19 = 264,413.88/x
  3. Step 3: Cross multiply
    479,273.90x = 661,400.19 × 264,413.88
  4. Step 4: Simplify right side
    479,273.90x = 174,883,390,470.64
  5. Step 5: Solve for x
    x = 174,883,390,470.64/479,273.90
  6. Step 6: Final answer
    x = 364,892.38

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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.