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Finding the Fourth Proportional to 989,922, 1,366,093.26 and 537,213

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Solution

The fourth proportional to 989,922, 1,366,093.26 and 537,213 is: 741,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,922 : 1,366,093.26 = 537,213 : x
  2. Step 2: Convert to fraction form
    989,922/1,366,093.26 = 537,213/x
  3. Step 3: Cross multiply
    989,922x = 1,366,093.26 × 537,213
  4. Step 4: Simplify right side
    989,922x = 733,883,058,484.38
  5. Step 5: Solve for x
    x = 733,883,058,484.38/989,922
  6. Step 6: Final answer
    x = 741,354.43

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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.