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Finding the Fourth Proportional to 666,270, 919,452.60 and 364,470.48

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Solution

The fourth proportional to 666,270, 919,452.60 and 364,470.48 is: 502,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,270 : 919,452.60 = 364,470.48 : x
  2. Step 2: Convert to fraction form
    666,270/919,452.60 = 364,470.48/x
  3. Step 3: Cross multiply
    666,270x = 919,452.60 × 364,470.48
  4. Step 4: Simplify right side
    666,270x = 335,113,330,459.25
  5. Step 5: Solve for x
    x = 335,113,330,459.25/666,270
  6. Step 6: Final answer
    x = 502,969.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.