Finding the Fourth Proportional to 1,286,653.36, 1,775,547.36 and 742,770.76
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Solution
The fourth proportional to 1,286,653.36, 1,775,547.36 and 742,770.76 is: 1,025,003.86
Step by Step Solution
- Step 1: Write the proportion equation
1,286,653.36 : 1,775,547.36 = 742,770.76 : x - Step 2: Convert to fraction form
1,286,653.36/1,775,547.36 = 742,770.76/x - Step 3: Cross multiply
1,286,653.36x = 1,775,547.36 × 742,770.76 - Step 4: Simplify right side
1,286,653.36x = 1,318,824,662,003.19 - Step 5: Solve for x
x = 1,318,824,662,003.19/1,286,653.36 - Step 6: Final answer
x = 1,025,003.86
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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.