Home / 690,340.98-1,035,571.33-210,676.79

Finding the Fourth Proportional to 690,340.98, 1,035,571.33 and 210,676.79

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Solution

The fourth proportional to 690,340.98, 1,035,571.33 and 210,676.79 is: 316,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,340.98 : 1,035,571.33 = 210,676.79 : x
  2. Step 2: Convert to fraction form
    690,340.98/1,035,571.33 = 210,676.79/x
  3. Step 3: Cross multiply
    690,340.98x = 1,035,571.33 × 210,676.79
  4. Step 4: Simplify right side
    690,340.98x = 218,170,843,620.43
  5. Step 5: Solve for x
    x = 218,170,843,620.43/690,340.98
  6. Step 6: Final answer
    x = 316,033.45

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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.