Home / 858,571.72-1,287,857.50-297,606.12

Finding the Fourth Proportional to 858,571.72, 1,287,857.50 and 297,606.12

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Solution

The fourth proportional to 858,571.72, 1,287,857.50 and 297,606.12 is: 446,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,571.72 : 1,287,857.50 = 297,606.12 : x
  2. Step 2: Convert to fraction form
    858,571.72/1,287,857.50 = 297,606.12/x
  3. Step 3: Cross multiply
    858,571.72x = 1,287,857.50 × 297,606.12
  4. Step 4: Simplify right side
    858,571.72x = 383,274,273,687.90
  5. Step 5: Solve for x
    x = 383,274,273,687.90/858,571.72
  6. Step 6: Final answer
    x = 446,409.15

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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.