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Finding the Fourth Proportional to 660,046.24, 989,910.73 and 304,718.95

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Solution

The fourth proportional to 660,046.24, 989,910.73 and 304,718.95 is: 457,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,046.24 : 989,910.73 = 304,718.95 : x
  2. Step 2: Convert to fraction form
    660,046.24/989,910.73 = 304,718.95/x
  3. Step 3: Cross multiply
    660,046.24x = 989,910.73 × 304,718.95
  4. Step 4: Simplify right side
    660,046.24x = 301,644,558,239.33
  5. Step 5: Solve for x
    x = 301,644,558,239.33/660,046.24
  6. Step 6: Final answer
    x = 457,005.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.