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Finding the Fourth Proportional to 559,646.37, 772,289.46 and 304,992.09

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Solution

The fourth proportional to 559,646.37, 772,289.46 and 304,992.09 is: 420,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,646.37 : 772,289.46 = 304,992.09 : x
  2. Step 2: Convert to fraction form
    559,646.37/772,289.46 = 304,992.09/x
  3. Step 3: Cross multiply
    559,646.37x = 772,289.46 × 304,992.09
  4. Step 4: Simplify right side
    559,646.37x = 235,542,176,490.37
  5. Step 5: Solve for x
    x = 235,542,176,490.37/559,646.37
  6. Step 6: Final answer
    x = 420,876.81

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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.