Home / 911,969.22-1,368,022.59-272,222.43

Finding the Fourth Proportional to 911,969.22, 1,368,022.59 and 272,222.43

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Solution

The fourth proportional to 911,969.22, 1,368,022.59 and 272,222.43 is: 408,354.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,969.22 : 1,368,022.59 = 272,222.43 : x
  2. Step 2: Convert to fraction form
    911,969.22/1,368,022.59 = 272,222.43/x
  3. Step 3: Cross multiply
    911,969.22x = 1,368,022.59 × 272,222.43
  4. Step 4: Simplify right side
    911,969.22x = 372,406,433,744.69
  5. Step 5: Solve for x
    x = 372,406,433,744.69/911,969.22
  6. Step 6: Final answer
    x = 408,354.17

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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.