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Finding the Fourth Proportional to 662,649.80, 914,464.50 and 360,843.80

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Solution

The fourth proportional to 662,649.80, 914,464.50 and 360,843.80 is: 497,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,649.80 : 914,464.50 = 360,843.80 : x
  2. Step 2: Convert to fraction form
    662,649.80/914,464.50 = 360,843.80/x
  3. Step 3: Cross multiply
    662,649.80x = 914,464.50 × 360,843.80
  4. Step 4: Simplify right side
    662,649.80x = 329,978,845,145.10
  5. Step 5: Solve for x
    x = 329,978,845,145.10/662,649.80
  6. Step 6: Final answer
    x = 497,968.68

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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.