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Finding the Fourth Proportional to 660,053.24, 989,921.22 and 304,725.98

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Solution

The fourth proportional to 660,053.24, 989,921.22 and 304,725.98 is: 457,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,053.24 : 989,921.22 = 304,725.98 : x
  2. Step 2: Convert to fraction form
    660,053.24/989,921.22 = 304,725.98/x
  3. Step 3: Cross multiply
    660,053.24x = 989,921.22 × 304,725.98
  4. Step 4: Simplify right side
    660,053.24x = 301,654,713,887.30
  5. Step 5: Solve for x
    x = 301,654,713,887.30/660,053.24
  6. Step 6: Final answer
    x = 457,015.73

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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.