Home / 689,906.79-1,035,031.05-330,351.23

Finding the Fourth Proportional to 689,906.79, 1,035,031.05 and 330,351.23

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Solution

The fourth proportional to 689,906.79, 1,035,031.05 and 330,351.23 is: 495,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,906.79 : 1,035,031.05 = 330,351.23 : x
  2. Step 2: Convert to fraction form
    689,906.79/1,035,031.05 = 330,351.23/x
  3. Step 3: Cross multiply
    689,906.79x = 1,035,031.05 × 330,351.23
  4. Step 4: Simplify right side
    689,906.79x = 341,923,783,043.27
  5. Step 5: Solve for x
    x = 341,923,783,043.27/689,906.79
  6. Step 6: Final answer
    x = 495,608.66

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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.