Home / 1,985,076.54-2,738,527.11-1,220,678.46

Finding the Fourth Proportional to 1,985,076.54, 2,738,527.11 and 1,220,678.46

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Solution

The fourth proportional to 1,985,076.54, 2,738,527.11 and 1,220,678.46 is: 1,683,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,076.54 : 2,738,527.11 = 1,220,678.46 : x
  2. Step 2: Convert to fraction form
    1,985,076.54/2,738,527.11 = 1,220,678.46/x
  3. Step 3: Cross multiply
    1,985,076.54x = 2,738,527.11 × 1,220,678.46
  4. Step 4: Simplify right side
    1,985,076.54x = 3,342,861,055,303.05
  5. Step 5: Solve for x
    x = 3,342,861,055,303.05/1,985,076.54
  6. Step 6: Final answer
    x = 1,683,996.05

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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.