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Finding the Fourth Proportional to 505,009.35, 757,514.88 and 404,447

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Solution

The fourth proportional to 505,009.35, 757,514.88 and 404,447 is: 606,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,009.35 : 757,514.88 = 404,447 : x
  2. Step 2: Convert to fraction form
    505,009.35/757,514.88 = 404,447/x
  3. Step 3: Cross multiply
    505,009.35x = 757,514.88 × 404,447
  4. Step 4: Simplify right side
    505,009.35x = 306,374,620,671.36
  5. Step 5: Solve for x
    x = 306,374,620,671.36/505,009.35
  6. Step 6: Final answer
    x = 606,671.18

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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.