Home / 823,721.61-1,236,455.85-729,563.06

Finding the Fourth Proportional to 823,721.61, 1,236,455.85 and 729,563.06

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Solution

The fourth proportional to 823,721.61, 1,236,455.85 and 729,563.06 is: 1,095,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,721.61 : 1,236,455.85 = 729,563.06 : x
  2. Step 2: Convert to fraction form
    823,721.61/1,236,455.85 = 729,563.06/x
  3. Step 3: Cross multiply
    823,721.61x = 1,236,455.85 × 729,563.06
  4. Step 4: Simplify right side
    823,721.61x = 902,072,519,307.90
  5. Step 5: Solve for x
    x = 902,072,519,307.90/823,721.61
  6. Step 6: Final answer
    x = 1,095,118.19

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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.