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Finding the Fourth Proportional to 662,662.60, 994,512.30 and 307,720.60

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Solution

The fourth proportional to 662,662.60, 994,512.30 and 307,720.60 is: 461,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,662.60 : 994,512.30 = 307,720.60 : x
  2. Step 2: Convert to fraction form
    662,662.60/994,512.30 = 307,720.60/x
  3. Step 3: Cross multiply
    662,662.60x = 994,512.30 × 307,720.60
  4. Step 4: Simplify right side
    662,662.60x = 306,031,921,663.38
  5. Step 5: Solve for x
    x = 306,031,921,663.38/662,662.60
  6. Step 6: Final answer
    x = 461,821.63

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1.5x scale

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.