Finding the Fourth Proportional to 557,408.99, 769,234.55 and 315,741.74
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Solution
The fourth proportional to 557,408.99, 769,234.55 and 315,741.74 is: 435,729.34
Step by Step Solution
- Step 1: Write the proportion equation
557,408.99 : 769,234.55 = 315,741.74 : x - Step 2: Convert to fraction form
557,408.99/769,234.55 = 315,741.74/x - Step 3: Cross multiply
557,408.99x = 769,234.55 × 315,741.74 - Step 4: Simplify right side
557,408.99x = 242,879,453,706.41 - Step 5: Solve for x
x = 242,879,453,706.41/557,408.99 - Step 6: Final answer
x = 435,729.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.