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Finding the Fourth Proportional to 618,361.43, 925,967.46 and 407,359.67

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Solution

The fourth proportional to 618,361.43, 925,967.46 and 407,359.67 is: 610,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,361.43 : 925,967.46 = 407,359.67 : x
  2. Step 2: Convert to fraction form
    618,361.43/925,967.46 = 407,359.67/x
  3. Step 3: Cross multiply
    618,361.43x = 925,967.46 × 407,359.67
  4. Step 4: Simplify right side
    618,361.43x = 377,201,795,834.10
  5. Step 5: Solve for x
    x = 377,201,795,834.10/618,361.43
  6. Step 6: Final answer
    x = 610,002.15

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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.