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Finding the Fourth Proportional to 1,195,920, 1,793,886.48 and 309,456

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Solution

The fourth proportional to 1,195,920, 1,793,886.48 and 309,456 is: 464,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,920 : 1,793,886.48 = 309,456 : x
  2. Step 2: Convert to fraction form
    1,195,920/1,793,886.48 = 309,456/x
  3. Step 3: Cross multiply
    1,195,920x = 1,793,886.48 × 309,456
  4. Step 4: Simplify right side
    1,195,920x = 555,128,934,554.88
  5. Step 5: Solve for x
    x = 555,128,934,554.88/1,195,920
  6. Step 6: Final answer
    x = 464,185.68

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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.