Home / 629,107.81-868,178.66-342,627.67

Finding the Fourth Proportional to 629,107.81, 868,178.66 and 342,627.67

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Solution

The fourth proportional to 629,107.81, 868,178.66 and 342,627.67 is: 472,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,107.81 : 868,178.66 = 342,627.67 : x
  2. Step 2: Convert to fraction form
    629,107.81/868,178.66 = 342,627.67/x
  3. Step 3: Cross multiply
    629,107.81x = 868,178.66 × 342,627.67
  4. Step 4: Simplify right side
    629,107.81x = 297,462,031,419.52
  5. Step 5: Solve for x
    x = 297,462,031,419.52/629,107.81
  6. Step 6: Final answer
    x = 472,831.57

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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.