Home / 551,788.21-828,261.47-489,009.97

Finding the Fourth Proportional to 551,788.21, 828,261.47 and 489,009.97

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Solution

The fourth proportional to 551,788.21, 828,261.47 and 489,009.97 is: 734,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,788.21 : 828,261.47 = 489,009.97 : x
  2. Step 2: Convert to fraction form
    551,788.21/828,261.47 = 489,009.97/x
  3. Step 3: Cross multiply
    551,788.21x = 828,261.47 × 489,009.97
  4. Step 4: Simplify right side
    551,788.21x = 405,028,116,596.86
  5. Step 5: Solve for x
    x = 405,028,116,596.86/551,788.21
  6. Step 6: Final answer
    x = 734,028.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.