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Finding the Fourth Proportional to 554,930.64, 765,806.31 and 300,281.83

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Solution

The fourth proportional to 554,930.64, 765,806.31 and 300,281.83 is: 414,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,930.64 : 765,806.31 = 300,281.83 : x
  2. Step 2: Convert to fraction form
    554,930.64/765,806.31 = 300,281.83/x
  3. Step 3: Cross multiply
    554,930.64x = 765,806.31 × 300,281.83
  4. Step 4: Simplify right side
    554,930.64x = 229,957,718,277.83
  5. Step 5: Solve for x
    x = 229,957,718,277.83/554,930.64
  6. Step 6: Final answer
    x = 414,390.02

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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.