Home / 821,539.89-1,232,347.91-252,946.47

Finding the Fourth Proportional to 821,539.89, 1,232,347.91 and 252,946.47

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Solution

The fourth proportional to 821,539.89, 1,232,347.91 and 252,946.47 is: 379,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,539.89 : 1,232,347.91 = 252,946.47 : x
  2. Step 2: Convert to fraction form
    821,539.89/1,232,347.91 = 252,946.47/x
  3. Step 3: Cross multiply
    821,539.89x = 1,232,347.91 × 252,946.47
  4. Step 4: Simplify right side
    821,539.89x = 311,718,052,381.65
  5. Step 5: Solve for x
    x = 311,718,052,381.65/821,539.89
  6. Step 6: Final answer
    x = 379,431.43

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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.