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Finding the Fourth Proportional to 554,933.28, 765,809.94 and 300,284.46

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Solution

The fourth proportional to 554,933.28, 765,809.94 and 300,284.46 is: 414,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,933.28 : 765,809.94 = 300,284.46 : x
  2. Step 2: Convert to fraction form
    554,933.28/765,809.94 = 300,284.46/x
  3. Step 3: Cross multiply
    554,933.28x = 765,809.94 × 300,284.46
  4. Step 4: Simplify right side
    554,933.28x = 229,960,824,295.53
  5. Step 5: Solve for x
    x = 229,960,824,295.53/554,933.28
  6. Step 6: Final answer
    x = 414,393.64

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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.