Home / 858,553.78-1,287,830.68-297,588.28

Finding the Fourth Proportional to 858,553.78, 1,287,830.68 and 297,588.28

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Solution

The fourth proportional to 858,553.78, 1,287,830.68 and 297,588.28 is: 446,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,553.78 : 1,287,830.68 = 297,588.28 : x
  2. Step 2: Convert to fraction form
    858,553.78/1,287,830.68 = 297,588.28/x
  3. Step 3: Cross multiply
    858,553.78x = 1,287,830.68 × 297,588.28
  4. Step 4: Simplify right side
    858,553.78x = 383,243,316,992.43
  5. Step 5: Solve for x
    x = 383,243,316,992.43/858,553.78
  6. Step 6: Final answer
    x = 446,382.42

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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.