Home / 874,093.78-1,311,140.67-313,521.94

Finding the Fourth Proportional to 874,093.78, 1,311,140.67 and 313,521.94

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Solution

The fourth proportional to 874,093.78, 1,311,140.67 and 313,521.94 is: 470,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,093.78 : 1,311,140.67 = 313,521.94 : x
  2. Step 2: Convert to fraction form
    874,093.78/1,311,140.67 = 313,521.94/x
  3. Step 3: Cross multiply
    874,093.78x = 1,311,140.67 × 313,521.94
  4. Step 4: Simplify right side
    874,093.78x = 411,071,366,471.30
  5. Step 5: Solve for x
    x = 411,071,366,471.30/874,093.78
  6. Step 6: Final answer
    x = 470,282.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.