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Finding the Fourth Proportional to 488,233.90, 685,102.10 and 488,233.90

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Solution

The fourth proportional to 488,233.90, 685,102.10 and 488,233.90 is: 685,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,233.90 : 685,102.10 = 488,233.90 : x
  2. Step 2: Convert to fraction form
    488,233.90/685,102.10 = 488,233.90/x
  3. Step 3: Cross multiply
    488,233.90x = 685,102.10 × 488,233.90
  4. Step 4: Simplify right side
    488,233.90x = 334,490,070,181.19
  5. Step 5: Solve for x
    x = 334,490,070,181.19/488,233.90
  6. Step 6: Final answer
    x = 685,102.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.