Finding the Fourth Proportional to 419,688.68, 579,170.40 and 228,702.02
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Solution
The fourth proportional to 419,688.68, 579,170.40 and 228,702.02 is: 315,608.80
Step by Step Solution
- Step 1: Write the proportion equation
419,688.68 : 579,170.40 = 228,702.02 : x - Step 2: Convert to fraction form
419,688.68/579,170.40 = 228,702.02/x - Step 3: Cross multiply
419,688.68x = 579,170.40 × 228,702.02 - Step 4: Simplify right side
419,688.68x = 132,457,440,404.21 - Step 5: Solve for x
x = 132,457,440,404.21/419,688.68 - Step 6: Final answer
x = 315,608.80
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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.