Finding the Fourth Proportional to 660,294.75, 990,779.91 and 314,469.75
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Solution
The fourth proportional to 660,294.75, 990,779.91 and 314,469.75 is: 471,865.50
Step by Step Solution
- Step 1: Write the proportion equation
660,294.75 : 990,779.91 = 314,469.75 : x - Step 2: Convert to fraction form
660,294.75/990,779.91 = 314,469.75/x - Step 3: Cross multiply
660,294.75x = 990,779.91 × 314,469.75 - Step 4: Simplify right side
660,294.75x = 311,570,310,602.72 - Step 5: Solve for x
x = 311,570,310,602.72/660,294.75 - Step 6: Final answer
x = 471,865.50
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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.