Home / 829,135.80-1,244,010.90-330,857.40

Finding the Fourth Proportional to 829,135.80, 1,244,010.90 and 330,857.40

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Solution

The fourth proportional to 829,135.80, 1,244,010.90 and 330,857.40 is: 496,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,135.80 : 1,244,010.90 = 330,857.40 : x
  2. Step 2: Convert to fraction form
    829,135.80/1,244,010.90 = 330,857.40/x
  3. Step 3: Cross multiply
    829,135.80x = 1,244,010.90 × 330,857.40
  4. Step 4: Simplify right side
    829,135.80x = 411,590,211,945.66
  5. Step 5: Solve for x
    x = 411,590,211,945.66/829,135.80
  6. Step 6: Final answer
    x = 496,408.68

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1.5x scale

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.