Home / 690,706.72-1,036,200.21-217,281.97

Finding the Fourth Proportional to 690,706.72, 1,036,200.21 and 217,281.97

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Solution

The fourth proportional to 690,706.72, 1,036,200.21 and 217,281.97 is: 325,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,706.72 : 1,036,200.21 = 217,281.97 : x
  2. Step 2: Convert to fraction form
    690,706.72/1,036,200.21 = 217,281.97/x
  3. Step 3: Cross multiply
    690,706.72x = 1,036,200.21 × 217,281.97
  4. Step 4: Simplify right side
    690,706.72x = 225,147,620,814.89
  5. Step 5: Solve for x
    x = 225,147,620,814.89/690,706.72
  6. Step 6: Final answer
    x = 325,967.03

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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.