Finding the Fourth Proportional to 842,476.80, 1,261,090.80 and 816,232.80
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Solution
The fourth proportional to 842,476.80, 1,261,090.80 and 816,232.80 is: 1,221,806.55
Step by Step Solution
- Step 1: Write the proportion equation
842,476.80 : 1,261,090.80 = 816,232.80 : x - Step 2: Convert to fraction form
842,476.80/1,261,090.80 = 816,232.80/x - Step 3: Cross multiply
842,476.80x = 1,261,090.80 × 816,232.80 - Step 4: Simplify right side
842,476.80x = 1,029,343,674,738.24 - Step 5: Solve for x
x = 1,029,343,674,738.24/842,476.80 - Step 6: Final answer
x = 1,221,806.55
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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.