Finding the Fourth Proportional to 603,716.70, 905,575.05 and 426,569.70
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Solution
The fourth proportional to 603,716.70, 905,575.05 and 426,569.70 is: 639,854.55
Step by Step Solution
- Step 1: Write the proportion equation
603,716.70 : 905,575.05 = 426,569.70 : x - Step 2: Convert to fraction form
603,716.70/905,575.05 = 426,569.70/x - Step 3: Cross multiply
603,716.70x = 905,575.05 × 426,569.70 - Step 4: Simplify right side
603,716.70x = 386,290,877,405.99 - Step 5: Solve for x
x = 386,290,877,405.99/603,716.70 - Step 6: Final answer
x = 639,854.55
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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.