Finding the Fourth Proportional to 819,448.40, 1,130,436.84 and 547,583.06
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Solution
The fourth proportional to 819,448.40, 1,130,436.84 and 547,583.06 is: 755,396.02
Step by Step Solution
- Step 1: Write the proportion equation
819,448.40 : 1,130,436.84 = 547,583.06 : x - Step 2: Convert to fraction form
819,448.40/1,130,436.84 = 547,583.06/x - Step 3: Cross multiply
819,448.40x = 1,130,436.84 × 547,583.06 - Step 4: Simplify right side
819,448.40x = 619,008,063,983.93 - Step 5: Solve for x
x = 619,008,063,983.93/819,448.40 - Step 6: Final answer
x = 755,396.02
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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.