Home / 494,092.20-681,596.81-312,498.30

Finding the Fourth Proportional to 494,092.20, 681,596.81 and 312,498.30

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Solution

The fourth proportional to 494,092.20, 681,596.81 and 312,498.30 is: 431,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,092.20 : 681,596.81 = 312,498.30 : x
  2. Step 2: Convert to fraction form
    494,092.20/681,596.81 = 312,498.30/x
  3. Step 3: Cross multiply
    494,092.20x = 681,596.81 × 312,498.30
  4. Step 4: Simplify right side
    494,092.20x = 212,997,844,410.42
  5. Step 5: Solve for x
    x = 212,997,844,410.42/494,092.20
  6. Step 6: Final answer
    x = 431,089.27

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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.