Home / 874,007.28-1,311,010.94-313,435.44

Finding the Fourth Proportional to 874,007.28, 1,311,010.94 and 313,435.44

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Solution

The fourth proportional to 874,007.28, 1,311,010.94 and 313,435.44 is: 470,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,007.28 : 1,311,010.94 = 313,435.44 : x
  2. Step 2: Convert to fraction form
    874,007.28/1,311,010.94 = 313,435.44/x
  3. Step 3: Cross multiply
    874,007.28x = 1,311,010.94 × 313,435.44
  4. Step 4: Simplify right side
    874,007.28x = 410,917,290,823.71
  5. Step 5: Solve for x
    x = 410,917,290,823.71/874,007.28
  6. Step 6: Final answer
    x = 470,153.17

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1.5x scale

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.