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Finding the Fourth Proportional to 666,258.36, 919,436.46 and 364,451.64

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Solution

The fourth proportional to 666,258.36, 919,436.46 and 364,451.64 is: 502,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,258.36 : 919,436.46 = 364,451.64 : x
  2. Step 2: Convert to fraction form
    666,258.36/919,436.46 = 364,451.64/x
  3. Step 3: Cross multiply
    666,258.36x = 919,436.46 × 364,451.64
  4. Step 4: Simplify right side
    666,258.36x = 335,090,125,722.79
  5. Step 5: Solve for x
    x = 335,090,125,722.79/666,258.36
  6. Step 6: Final answer
    x = 502,943.22

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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.