Home / 727,215.54-1,090,820.32-221,775.03

Finding the Fourth Proportional to 727,215.54, 1,090,820.32 and 221,775.03

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Solution

The fourth proportional to 727,215.54, 1,090,820.32 and 221,775.03 is: 332,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,215.54 : 1,090,820.32 = 221,775.03 : x
  2. Step 2: Convert to fraction form
    727,215.54/1,090,820.32 = 221,775.03/x
  3. Step 3: Cross multiply
    727,215.54x = 1,090,820.32 × 221,775.03
  4. Step 4: Simplify right side
    727,215.54x = 241,916,709,192.61
  5. Step 5: Solve for x
    x = 241,916,709,192.61/727,215.54
  6. Step 6: Final answer
    x = 332,661.63

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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.