Home / 494,977.73-683,079.50-280,117.76

Finding the Fourth Proportional to 494,977.73, 683,079.50 and 280,117.76

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Solution

The fourth proportional to 494,977.73, 683,079.50 and 280,117.76 is: 386,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,977.73 : 683,079.50 = 280,117.76 : x
  2. Step 2: Convert to fraction form
    494,977.73/683,079.50 = 280,117.76/x
  3. Step 3: Cross multiply
    494,977.73x = 683,079.50 × 280,117.76
  4. Step 4: Simplify right side
    494,977.73x = 191,342,698,041.33
  5. Step 5: Solve for x
    x = 191,342,698,041.33/494,977.73
  6. Step 6: Final answer
    x = 386,568.30

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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.