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Finding the Fourth Proportional to 808,958.88, 1,213,594.38 and 310,284

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Solution

The fourth proportional to 808,958.88, 1,213,594.38 and 310,284 is: 465,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,958.88 : 1,213,594.38 = 310,284 : x
  2. Step 2: Convert to fraction form
    808,958.88/1,213,594.38 = 310,284/x
  3. Step 3: Cross multiply
    808,958.88x = 1,213,594.38 × 310,284
  4. Step 4: Simplify right side
    808,958.88x = 376,558,918,603.92
  5. Step 5: Solve for x
    x = 376,558,918,603.92/808,958.88
  6. Step 6: Final answer
    x = 465,485.86

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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.