Finding the Fourth Proportional to 818,969.10, 1,130,178.42 and 456,384.99
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Solution
The fourth proportional to 818,969.10, 1,130,178.42 and 456,384.99 is: 629,811.88
Step by Step Solution
- Step 1: Write the proportion equation
818,969.10 : 1,130,178.42 = 456,384.99 : x - Step 2: Convert to fraction form
818,969.10/1,130,178.42 = 456,384.99/x - Step 3: Cross multiply
818,969.10x = 1,130,178.42 × 456,384.99 - Step 4: Simplify right side
818,969.10x = 515,796,466,909.92 - Step 5: Solve for x
x = 515,796,466,909.92/818,969.10 - Step 6: Final answer
x = 629,811.88
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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.