Home / 494,145.02-681,993.27-312,873.77

Finding the Fourth Proportional to 494,145.02, 681,993.27 and 312,873.77

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Solution

The fourth proportional to 494,145.02, 681,993.27 and 312,873.77 is: 431,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,145.02 : 681,993.27 = 312,873.77 : x
  2. Step 2: Convert to fraction form
    494,145.02/681,993.27 = 312,873.77/x
  3. Step 3: Cross multiply
    494,145.02x = 681,993.27 × 312,873.77
  4. Step 4: Simplify right side
    494,145.02x = 213,377,807,204.51
  5. Step 5: Solve for x
    x = 213,377,807,204.51/494,145.02
  6. Step 6: Final answer
    x = 431,812.11

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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.