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Finding the Fourth Proportional to 660,049.24, 989,915.24 and 304,721.96

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Solution

The fourth proportional to 660,049.24, 989,915.24 and 304,721.96 is: 457,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,049.24 : 989,915.24 = 304,721.96 : x
  2. Step 2: Convert to fraction form
    660,049.24/989,915.24 = 304,721.96/x
  3. Step 3: Cross multiply
    660,049.24x = 989,915.24 × 304,721.96
  4. Step 4: Simplify right side
    660,049.24x = 301,648,912,166.67
  5. Step 5: Solve for x
    x = 301,648,912,166.67/660,049.24
  6. Step 6: Final answer
    x = 457,009.71

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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.