Home / 758,662.68-1,046,979.90-419,149.56

Finding the Fourth Proportional to 758,662.68, 1,046,979.90 and 419,149.56

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Solution

The fourth proportional to 758,662.68, 1,046,979.90 and 419,149.56 is: 578,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,662.68 : 1,046,979.90 = 419,149.56 : x
  2. Step 2: Convert to fraction form
    758,662.68/1,046,979.90 = 419,149.56/x
  3. Step 3: Cross multiply
    758,662.68x = 1,046,979.90 × 419,149.56
  4. Step 4: Simplify right side
    758,662.68x = 438,841,164,413.84
  5. Step 5: Solve for x
    x = 438,841,164,413.84/758,662.68
  6. Step 6: Final answer
    x = 578,440.43

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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.