Home / 999,310.78-1,379,014.50-569,729.26

Finding the Fourth Proportional to 999,310.78, 1,379,014.50 and 569,729.26

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Solution

The fourth proportional to 999,310.78, 1,379,014.50 and 569,729.26 is: 786,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,310.78 : 1,379,014.50 = 569,729.26 : x
  2. Step 2: Convert to fraction form
    999,310.78/1,379,014.50 = 569,729.26/x
  3. Step 3: Cross multiply
    999,310.78x = 1,379,014.50 × 569,729.26
  4. Step 4: Simplify right side
    999,310.78x = 785,664,910,614.27
  5. Step 5: Solve for x
    x = 785,664,910,614.27/999,310.78
  6. Step 6: Final answer
    x = 786,206.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.