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Finding the Fourth Proportional to 554,467.82, 765,165.02 and 299,818.40

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Solution

The fourth proportional to 554,467.82, 765,165.02 and 299,818.40 is: 413,749.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,467.82 : 765,165.02 = 299,818.40 : x
  2. Step 2: Convert to fraction form
    554,467.82/765,165.02 = 299,818.40/x
  3. Step 3: Cross multiply
    554,467.82x = 765,165.02 × 299,818.40
  4. Step 4: Simplify right side
    554,467.82x = 229,410,552,032.37
  5. Step 5: Solve for x
    x = 229,410,552,032.37/554,467.82
  6. Step 6: Final answer
    x = 413,749.08

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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.