Finding the Fourth Proportional to 916,761.36, 1,265,106.96 and 508,842.12
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Solution
The fourth proportional to 916,761.36, 1,265,106.96 and 508,842.12 is: 702,188.96
Step by Step Solution
- Step 1: Write the proportion equation
916,761.36 : 1,265,106.96 = 508,842.12 : x - Step 2: Convert to fraction form
916,761.36/1,265,106.96 = 508,842.12/x - Step 3: Cross multiply
916,761.36x = 1,265,106.96 × 508,842.12 - Step 4: Simplify right side
916,761.36x = 643,739,707,553.16 - Step 5: Solve for x
x = 643,739,707,553.16/916,761.36 - Step 6: Final answer
x = 702,188.96
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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.