Finding the Fourth Proportional to 671,657.70, 1,007,486.55 and 228,425.70
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Solution
The fourth proportional to 671,657.70, 1,007,486.55 and 228,425.70 is: 342,638.55
Step by Step Solution
- Step 1: Write the proportion equation
671,657.70 : 1,007,486.55 = 228,425.70 : x - Step 2: Convert to fraction form
671,657.70/1,007,486.55 = 228,425.70/x - Step 3: Cross multiply
671,657.70x = 1,007,486.55 × 228,425.70 - Step 4: Simplify right side
671,657.70x = 230,135,820,424.34 - Step 5: Solve for x
x = 230,135,820,424.34/671,657.70 - Step 6: Final answer
x = 342,638.55
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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.