Home / 494,385.12-682,277.58-313,030.98

Finding the Fourth Proportional to 494,385.12, 682,277.58 and 313,030.98

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Solution

The fourth proportional to 494,385.12, 682,277.58 and 313,030.98 is: 431,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,385.12 : 682,277.58 = 313,030.98 : x
  2. Step 2: Convert to fraction form
    494,385.12/682,277.58 = 313,030.98/x
  3. Step 3: Cross multiply
    494,385.12x = 682,277.58 × 313,030.98
  4. Step 4: Simplify right side
    494,385.12x = 213,574,019,499.43
  5. Step 5: Solve for x
    x = 213,574,019,499.43/494,385.12
  6. Step 6: Final answer
    x = 431,999.29

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1.5x scale

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.