Finding the Fourth Proportional to 3,791,326.28, 5,686,989.44 and 1,266,981.54
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Solution
The fourth proportional to 3,791,326.28, 5,686,989.44 and 1,266,981.54 is: 1,900,472.32
Step by Step Solution
- Step 1: Write the proportion equation
3,791,326.28 : 5,686,989.44 = 1,266,981.54 : x - Step 2: Convert to fraction form
3,791,326.28/5,686,989.44 = 1,266,981.54/x - Step 3: Cross multiply
3,791,326.28x = 5,686,989.44 × 1,266,981.54 - Step 4: Simplify right side
3,791,326.28x = 7,205,310,638,654.94 - Step 5: Solve for x
x = 7,205,310,638,654.94/3,791,326.28 - Step 6: Final answer
x = 1,900,472.32
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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.