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Finding the Fourth Proportional to 554,927.25, 765,801.64 and 300,278.44

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Solution

The fourth proportional to 554,927.25, 765,801.64 and 300,278.44 is: 414,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,927.25 : 765,801.64 = 300,278.44 : x
  2. Step 2: Convert to fraction form
    554,927.25/765,801.64 = 300,278.44/x
  3. Step 3: Cross multiply
    554,927.25x = 765,801.64 × 300,278.44
  4. Step 4: Simplify right side
    554,927.25x = 229,953,723,141.24
  5. Step 5: Solve for x
    x = 229,953,723,141.24/554,927.25
  6. Step 6: Final answer
    x = 414,385.35

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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.