Finding the Fourth Proportional to 747,602.10, 1,121,403.15 and 449,003.70
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Solution
The fourth proportional to 747,602.10, 1,121,403.15 and 449,003.70 is: 673,505.55
Step by Step Solution
- Step 1: Write the proportion equation
747,602.10 : 1,121,403.15 = 449,003.70 : x - Step 2: Convert to fraction form
747,602.10/1,121,403.15 = 449,003.70/x - Step 3: Cross multiply
747,602.10x = 1,121,403.15 × 449,003.70 - Step 4: Simplify right side
747,602.10x = 503,514,163,541.66 - Step 5: Solve for x
x = 503,514,163,541.66/747,602.10 - Step 6: Final answer
x = 673,505.55
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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.