Finding the Fourth Proportional to 819,713.30, 1,131,202.11 and 457,137.54
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Solution
The fourth proportional to 819,713.30, 1,131,202.11 and 457,137.54 is: 630,848.55
Step by Step Solution
- Step 1: Write the proportion equation
819,713.30 : 1,131,202.11 = 457,137.54 : x - Step 2: Convert to fraction form
819,713.30/1,131,202.11 = 457,137.54/x - Step 3: Cross multiply
819,713.30x = 1,131,202.11 × 457,137.54 - Step 4: Simplify right side
819,713.30x = 517,114,949,808.21 - Step 5: Solve for x
x = 517,114,949,808.21/819,713.30 - Step 6: Final answer
x = 630,848.55
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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.