Finding the Fourth Proportional to 1,242,620.82, 1,861,130.91 and 870,305.94
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Solution
The fourth proportional to 1,242,620.82, 1,861,130.91 and 870,305.94 is: 1,303,497.62
Step by Step Solution
- Step 1: Write the proportion equation
1,242,620.82 : 1,861,130.91 = 870,305.94 : x - Step 2: Convert to fraction form
1,242,620.82/1,861,130.91 = 870,305.94/x - Step 3: Cross multiply
1,242,620.82x = 1,861,130.91 × 870,305.94 - Step 4: Simplify right side
1,242,620.82x = 1,619,753,286,090.61 - Step 5: Solve for x
x = 1,619,753,286,090.61/1,242,620.82 - Step 6: Final answer
x = 1,303,497.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.