Finding the Fourth Proportional to 807,711.36, 1,114,649.28 and 445,148.28
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Solution
The fourth proportional to 807,711.36, 1,114,649.28 and 445,148.28 is: 614,308.82
Step by Step Solution
- Step 1: Write the proportion equation
807,711.36 : 1,114,649.28 = 445,148.28 : x - Step 2: Convert to fraction form
807,711.36/1,114,649.28 = 445,148.28/x - Step 3: Cross multiply
807,711.36x = 1,114,649.28 × 445,148.28 - Step 4: Simplify right side
807,711.36x = 496,184,209,795.24 - Step 5: Solve for x
x = 496,184,209,795.24/807,711.36 - Step 6: Final answer
x = 614,308.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.