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Finding the Fourth Proportional to 980,777.82, 1,353,474.54 and 551,057.70

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Solution

The fourth proportional to 980,777.82, 1,353,474.54 and 551,057.70 is: 760,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,777.82 : 1,353,474.54 = 551,057.70 : x
  2. Step 2: Convert to fraction form
    980,777.82/1,353,474.54 = 551,057.70/x
  3. Step 3: Cross multiply
    980,777.82x = 1,353,474.54 × 551,057.70
  4. Step 4: Simplify right side
    980,777.82x = 745,842,567,020.96
  5. Step 5: Solve for x
    x = 745,842,567,020.96/980,777.82
  6. Step 6: Final answer
    x = 760,460.27

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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.