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Finding the Fourth Proportional to 455,513.63, 683,684.82 and 242,460.64

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Solution

The fourth proportional to 455,513.63, 683,684.82 and 242,460.64 is: 363,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,513.63 : 683,684.82 = 242,460.64 : x
  2. Step 2: Convert to fraction form
    455,513.63/683,684.82 = 242,460.64/x
  3. Step 3: Cross multiply
    455,513.63x = 683,684.82 × 242,460.64
  4. Step 4: Simplify right side
    455,513.63x = 165,766,659,870.09
  5. Step 5: Solve for x
    x = 165,766,659,870.09/455,513.63
  6. Step 6: Final answer
    x = 363,911.53

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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.