Finding the Fourth Proportional to 1,227,780.36, 1,841,495.58 and 386,310.24
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Solution
The fourth proportional to 1,227,780.36, 1,841,495.58 and 386,310.24 is: 579,410.31
Step by Step Solution
- Step 1: Write the proportion equation
1,227,780.36 : 1,841,495.58 = 386,310.24 : x - Step 2: Convert to fraction form
1,227,780.36/1,841,495.58 = 386,310.24/x - Step 3: Cross multiply
1,227,780.36x = 1,841,495.58 × 386,310.24 - Step 4: Simplify right side
1,227,780.36x = 711,388,599,468.74 - Step 5: Solve for x
x = 711,388,599,468.74/1,227,780.36 - Step 6: Final answer
x = 579,410.31
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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.