Home / 858,554.78-1,287,832.18-297,589.28

Finding the Fourth Proportional to 858,554.78, 1,287,832.18 and 297,589.28

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Solution

The fourth proportional to 858,554.78, 1,287,832.18 and 297,589.28 is: 446,383.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,554.78 : 1,287,832.18 = 297,589.28 : x
  2. Step 2: Convert to fraction form
    858,554.78/1,287,832.18 = 297,589.28/x
  3. Step 3: Cross multiply
    858,554.78x = 1,287,832.18 × 297,589.28
  4. Step 4: Simplify right side
    858,554.78x = 383,245,051,207.03
  5. Step 5: Solve for x
    x = 383,245,051,207.03/858,554.78
  6. Step 6: Final answer
    x = 446,383.92

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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.