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Finding the Fourth Proportional to 554,979.16, 765,871.86 and 300,330.37

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Solution

The fourth proportional to 554,979.16, 765,871.86 and 300,330.37 is: 414,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,979.16 : 765,871.86 = 300,330.37 : x
  2. Step 2: Convert to fraction form
    554,979.16/765,871.86 = 300,330.37/x
  3. Step 3: Cross multiply
    554,979.16x = 765,871.86 × 300,330.37
  4. Step 4: Simplify right side
    554,979.16x = 230,014,579,086.39
  5. Step 5: Solve for x
    x = 230,014,579,086.39/554,979.16
  6. Step 6: Final answer
    x = 414,456.25

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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.