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Finding the Fourth Proportional to 945,957.60, 1,419,627.60 and 666,021.60

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Solution

The fourth proportional to 945,957.60, 1,419,627.60 and 666,021.60 is: 999,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,957.60 : 1,419,627.60 = 666,021.60 : x
  2. Step 2: Convert to fraction form
    945,957.60/1,419,627.60 = 666,021.60/x
  3. Step 3: Cross multiply
    945,957.60x = 1,419,627.60 × 666,021.60
  4. Step 4: Simplify right side
    945,957.60x = 945,502,645,556.16
  5. Step 5: Solve for x
    x = 945,502,645,556.16/945,957.60
  6. Step 6: Final answer
    x = 999,519.05

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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.