Home / 2,100,963.42-3,151,888.00-680,908.78

Finding the Fourth Proportional to 2,100,963.42, 3,151,888.00 and 680,908.78

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Solution

The fourth proportional to 2,100,963.42, 3,151,888.00 and 680,908.78 is: 1,021,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,963.42 : 3,151,888.00 = 680,908.78 : x
  2. Step 2: Convert to fraction form
    2,100,963.42/3,151,888.00 = 680,908.78/x
  3. Step 3: Cross multiply
    2,100,963.42x = 3,151,888.00 × 680,908.78
  4. Step 4: Simplify right side
    2,100,963.42x = 2,146,148,215,014.23
  5. Step 5: Solve for x
    x = 2,146,148,215,014.23/2,100,963.42
  6. Step 6: Final answer
    x = 1,021,506.70

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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.