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Finding the Fourth Proportional to 554,970.77, 765,859.67 and 300,321.96

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Solution

The fourth proportional to 554,970.77, 765,859.67 and 300,321.96 is: 414,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,970.77 : 765,859.67 = 300,321.96 : x
  2. Step 2: Convert to fraction form
    554,970.77/765,859.67 = 300,321.96/x
  3. Step 3: Cross multiply
    554,970.77x = 765,859.67 × 300,321.96
  4. Step 4: Simplify right side
    554,970.77x = 230,004,477,179.35
  5. Step 5: Solve for x
    x = 230,004,477,179.35/554,970.77
  6. Step 6: Final answer
    x = 414,444.31

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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.