Home / 879,026.43-1,318,590.69-339,285.78

Finding the Fourth Proportional to 879,026.43, 1,318,590.69 and 339,285.78

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Solution

The fourth proportional to 879,026.43, 1,318,590.69 and 339,285.78 is: 508,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,026.43 : 1,318,590.69 = 339,285.78 : x
  2. Step 2: Convert to fraction form
    879,026.43/1,318,590.69 = 339,285.78/x
  3. Step 3: Cross multiply
    879,026.43x = 1,318,590.69 × 339,285.78
  4. Step 4: Simplify right side
    879,026.43x = 447,379,070,757.39
  5. Step 5: Solve for x
    x = 447,379,070,757.39/879,026.43
  6. Step 6: Final answer
    x = 508,948.37

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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.