Home / 494,146.02-681,994.65-312,874.77

Finding the Fourth Proportional to 494,146.02, 681,994.65 and 312,874.77

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Solution

The fourth proportional to 494,146.02, 681,994.65 and 312,874.77 is: 431,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,146.02 : 681,994.65 = 312,874.77 : x
  2. Step 2: Convert to fraction form
    494,146.02/681,994.65 = 312,874.77/x
  3. Step 3: Cross multiply
    494,146.02x = 681,994.65 × 312,874.77
  4. Step 4: Simplify right side
    494,146.02x = 213,378,919,259.98
  5. Step 5: Solve for x
    x = 213,378,919,259.98/494,146.02
  6. Step 6: Final answer
    x = 431,813.49

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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.