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Finding the Fourth Proportional to 666,010.48, 919,075.80 and 364,198

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Solution

The fourth proportional to 666,010.48, 919,075.80 and 364,198 is: 502,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,010.48 : 919,075.80 = 364,198 : x
  2. Step 2: Convert to fraction form
    666,010.48/919,075.80 = 364,198/x
  3. Step 3: Cross multiply
    666,010.48x = 919,075.80 × 364,198
  4. Step 4: Simplify right side
    666,010.48x = 334,725,568,208.40
  5. Step 5: Solve for x
    x = 334,725,568,208.40/666,010.48
  6. Step 6: Final answer
    x = 502,583.03

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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.