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Finding the Fourth Proportional to 469,603.88, 703,942.48 and 300,643.28

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Solution

The fourth proportional to 469,603.88, 703,942.48 and 300,643.28 is: 450,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,603.88 : 703,942.48 = 300,643.28 : x
  2. Step 2: Convert to fraction form
    469,603.88/703,942.48 = 300,643.28/x
  3. Step 3: Cross multiply
    469,603.88x = 703,942.48 × 300,643.28
  4. Step 4: Simplify right side
    469,603.88x = 211,635,576,118.53
  5. Step 5: Solve for x
    x = 211,635,576,118.53/469,603.88
  6. Step 6: Final answer
    x = 450,668.29

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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.