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Finding the Fourth Proportional to 554,970.28, 765,858.98 and 300,321.46

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Solution

The fourth proportional to 554,970.28, 765,858.98 and 300,321.46 is: 414,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,970.28 : 765,858.98 = 300,321.46 : x
  2. Step 2: Convert to fraction form
    554,970.28/765,858.98 = 300,321.46/x
  3. Step 3: Cross multiply
    554,970.28x = 765,858.98 × 300,321.46
  4. Step 4: Simplify right side
    554,970.28x = 230,003,887,027.71
  5. Step 5: Solve for x
    x = 230,003,887,027.71/554,970.28
  6. Step 6: Final answer
    x = 414,443.62

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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.