Finding the Fourth Proportional to 547,602.10, 821,403.15 and 488,115.70
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Solution
The fourth proportional to 547,602.10, 821,403.15 and 488,115.70 is: 732,173.55
Step by Step Solution
- Step 1: Write the proportion equation
547,602.10 : 821,403.15 = 488,115.70 : x - Step 2: Convert to fraction form
547,602.10/821,403.15 = 488,115.70/x - Step 3: Cross multiply
547,602.10x = 821,403.15 × 488,115.70 - Step 4: Simplify right side
547,602.10x = 400,939,773,544.46 - Step 5: Solve for x
x = 400,939,773,544.46/547,602.10 - Step 6: Final answer
x = 732,173.55
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Similar ratio
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1.5x scale
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.