Finding the Fourth Proportional to 1,242,125.18, 1,861,858.94 and 642,482.62
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Solution
The fourth proportional to 1,242,125.18, 1,861,858.94 and 642,482.62 is: 963,036.60
Step by Step Solution
- Step 1: Write the proportion equation
1,242,125.18 : 1,861,858.94 = 642,482.62 : x - Step 2: Convert to fraction form
1,242,125.18/1,861,858.94 = 642,482.62/x - Step 3: Cross multiply
1,242,125.18x = 1,861,858.94 × 642,482.62 - Step 4: Simplify right side
1,242,125.18x = 1,196,212,009,841.62 - Step 5: Solve for x
x = 1,196,212,009,841.62/1,242,125.18 - Step 6: Final answer
x = 963,036.60
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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.