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Finding the Fourth Proportional to 554,976.49, 765,867.54 and 300,327.68

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Solution

The fourth proportional to 554,976.49, 765,867.54 and 300,327.68 is: 414,452.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,976.49 : 765,867.54 = 300,327.68 : x
  2. Step 2: Convert to fraction form
    554,976.49/765,867.54 = 300,327.68/x
  3. Step 3: Cross multiply
    554,976.49x = 765,867.54 × 300,327.68
  4. Step 4: Simplify right side
    554,976.49x = 230,011,221,475.51
  5. Step 5: Solve for x
    x = 230,011,221,475.51/554,976.49
  6. Step 6: Final answer
    x = 414,452.19

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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.