Finding the Fourth Proportional to 659,608.21, 910,281.68 and 387,672.18
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Solution
The fourth proportional to 659,608.21, 910,281.68 and 387,672.18 is: 535,000.74
Step by Step Solution
- Step 1: Write the proportion equation
659,608.21 : 910,281.68 = 387,672.18 : x - Step 2: Convert to fraction form
659,608.21/910,281.68 = 387,672.18/x - Step 3: Cross multiply
659,608.21x = 910,281.68 × 387,672.18 - Step 4: Simplify right side
659,608.21x = 352,890,883,299.66 - Step 5: Solve for x
x = 352,890,883,299.66/659,608.21 - Step 6: Final answer
x = 535,000.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.