Home / 2,100,963.92-3,151,888.75-680,909.28

Finding the Fourth Proportional to 2,100,963.92, 3,151,888.75 and 680,909.28

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Solution

The fourth proportional to 2,100,963.92, 3,151,888.75 and 680,909.28 is: 1,021,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,963.92 : 3,151,888.75 = 680,909.28 : x
  2. Step 2: Convert to fraction form
    2,100,963.92/3,151,888.75 = 680,909.28/x
  3. Step 3: Cross multiply
    2,100,963.92x = 3,151,888.75 × 680,909.28
  4. Step 4: Simplify right side
    2,100,963.92x = 2,146,150,299,402.60
  5. Step 5: Solve for x
    x = 2,146,150,299,402.60/2,100,963.92
  6. Step 6: Final answer
    x = 1,021,507.45

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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.