Finding the Fourth Proportional to 1,251,922.05, 1,727,654.45 and 678,962.68
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Solution
The fourth proportional to 1,251,922.05, 1,727,654.45 and 678,962.68 is: 936,969.59
Step by Step Solution
- Step 1: Write the proportion equation
1,251,922.05 : 1,727,654.45 = 678,962.68 : x - Step 2: Convert to fraction form
1,251,922.05/1,727,654.45 = 678,962.68/x - Step 3: Cross multiply
1,251,922.05x = 1,727,654.45 × 678,962.68 - Step 4: Simplify right side
1,251,922.05x = 1,173,012,887,771.98 - Step 5: Solve for x
x = 1,173,012,887,771.98/1,251,922.05 - Step 6: Final answer
x = 936,969.59
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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.