Finding the Fourth Proportional to 420,635.82, 629,947.86 and 242,603.09
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Solution
The fourth proportional to 420,635.82, 629,947.86 and 242,603.09 is: 363,324.49
Step by Step Solution
- Step 1: Write the proportion equation
420,635.82 : 629,947.86 = 242,603.09 : x - Step 2: Convert to fraction form
420,635.82/629,947.86 = 242,603.09/x - Step 3: Cross multiply
420,635.82x = 629,947.86 × 242,603.09 - Step 4: Simplify right side
420,635.82x = 152,827,294,225.15 - Step 5: Solve for x
x = 152,827,294,225.15/420,635.82 - Step 6: Final answer
x = 363,324.49
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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.