Home / 382,943.89-528,441.87-210,828.34

Finding the Fourth Proportional to 382,943.89, 528,441.87 and 210,828.34

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Solution

The fourth proportional to 382,943.89, 528,441.87 and 210,828.34 is: 290,931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,943.89 : 528,441.87 = 210,828.34 : x
  2. Step 2: Convert to fraction form
    382,943.89/528,441.87 = 210,828.34/x
  3. Step 3: Cross multiply
    382,943.89x = 528,441.87 × 210,828.34
  4. Step 4: Simplify right side
    382,943.89x = 111,410,522,238.60
  5. Step 5: Solve for x
    x = 111,410,522,238.60/382,943.89
  6. Step 6: Final answer
    x = 290,931.71

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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.