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Finding the Fourth Proportional to 453,843.77, 626,028.09 and 279,442.04

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Solution

The fourth proportional to 453,843.77, 626,028.09 and 279,442.04 is: 385,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,843.77 : 626,028.09 = 279,442.04 : x
  2. Step 2: Convert to fraction form
    453,843.77/626,028.09 = 279,442.04/x
  3. Step 3: Cross multiply
    453,843.77x = 626,028.09 × 279,442.04
  4. Step 4: Simplify right side
    453,843.77x = 174,938,566,566.90
  5. Step 5: Solve for x
    x = 174,938,566,566.90/453,843.77
  6. Step 6: Final answer
    x = 385,459.88

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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.