Home / 690,714.24-1,036,211.46-217,289.49

Finding the Fourth Proportional to 690,714.24, 1,036,211.46 and 217,289.49

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Solution

The fourth proportional to 690,714.24, 1,036,211.46 and 217,289.49 is: 325,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,714.24 : 1,036,211.46 = 217,289.49 : x
  2. Step 2: Convert to fraction form
    690,714.24/1,036,211.46 = 217,289.49/x
  3. Step 3: Cross multiply
    690,714.24x = 1,036,211.46 × 217,289.49
  4. Step 4: Simplify right side
    690,714.24x = 225,157,859,675.56
  5. Step 5: Solve for x
    x = 225,157,859,675.56/690,714.24
  6. Step 6: Final answer
    x = 325,978.31

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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.