Home / 858,399.25-1,287,828.51-297,433.75

Finding the Fourth Proportional to 858,399.25, 1,287,828.51 and 297,433.75

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Solution

The fourth proportional to 858,399.25, 1,287,828.51 and 297,433.75 is: 446,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,399.25 : 1,287,828.51 = 297,433.75 : x
  2. Step 2: Convert to fraction form
    858,399.25/1,287,828.51 = 297,433.75/x
  3. Step 3: Cross multiply
    858,399.25x = 1,287,828.51 × 297,433.75
  4. Step 4: Simplify right side
    858,399.25x = 383,043,663,086.21
  5. Step 5: Solve for x
    x = 383,043,663,086.21/858,399.25
  6. Step 6: Final answer
    x = 446,230.19

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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.