Finding the Fourth Proportional to 648,294.08, 971,937.48 and 420,107.66
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Solution
The fourth proportional to 648,294.08, 971,937.48 and 420,107.66 is: 629,835.12
Step by Step Solution
- Step 1: Write the proportion equation
648,294.08 : 971,937.48 = 420,107.66 : x - Step 2: Convert to fraction form
648,294.08/971,937.48 = 420,107.66/x - Step 3: Cross multiply
648,294.08x = 971,937.48 × 420,107.66 - Step 4: Simplify right side
648,294.08x = 408,318,380,389.10 - Step 5: Solve for x
x = 408,318,380,389.10/648,294.08 - Step 6: Final answer
x = 629,835.12
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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.