Finding the Fourth Proportional to 1,860,421.54, 2,567,662.47 and 1,135,691.14
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Solution
The fourth proportional to 1,860,421.54, 2,567,662.47 and 1,135,691.14 is: 1,567,425.15
Step by Step Solution
- Step 1: Write the proportion equation
1,860,421.54 : 2,567,662.47 = 1,135,691.14 : x - Step 2: Convert to fraction form
1,860,421.54/2,567,662.47 = 1,135,691.14/x - Step 3: Cross multiply
1,860,421.54x = 2,567,662.47 × 1,135,691.14 - Step 4: Simplify right side
1,860,421.54x = 2,916,071,517,689.52 - Step 5: Solve for x
x = 2,916,071,517,689.52/1,860,421.54 - Step 6: Final answer
x = 1,567,425.15
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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.