Home / 1,990,688.81-2,747,117.58-1,107,604.86

Finding the Fourth Proportional to 1,990,688.81, 2,747,117.58 and 1,107,604.86

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Solution

The fourth proportional to 1,990,688.81, 2,747,117.58 and 1,107,604.86 is: 1,528,476.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,688.81 : 2,747,117.58 = 1,107,604.86 : x
  2. Step 2: Convert to fraction form
    1,990,688.81/2,747,117.58 = 1,107,604.86/x
  3. Step 3: Cross multiply
    1,990,688.81x = 2,747,117.58 × 1,107,604.86
  4. Step 4: Simplify right side
    1,990,688.81x = 3,042,720,782,100.78
  5. Step 5: Solve for x
    x = 3,042,720,782,100.78/1,990,688.81
  6. Step 6: Final answer
    x = 1,528,476.36

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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.