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Finding the Fourth Proportional to 481,293.70, 664,498.65 and 309,277.95

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Solution

The fourth proportional to 481,293.70, 664,498.65 and 309,277.95 is: 427,004.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,293.70 : 664,498.65 = 309,277.95 : x
  2. Step 2: Convert to fraction form
    481,293.70/664,498.65 = 309,277.95/x
  3. Step 3: Cross multiply
    481,293.70x = 664,498.65 × 309,277.95
  4. Step 4: Simplify right side
    481,293.70x = 205,514,777,178.00
  5. Step 5: Solve for x
    x = 205,514,777,178.00/481,293.70
  6. Step 6: Final answer
    x = 427,004.92

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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.