Finding the Fourth Proportional to 916,394.82, 1,264,564.09 and 508,470.80
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Solution
The fourth proportional to 916,394.82, 1,264,564.09 and 508,470.80 is: 701,655.99
Step by Step Solution
- Step 1: Write the proportion equation
916,394.82 : 1,264,564.09 = 508,470.80 : x - Step 2: Convert to fraction form
916,394.82/1,264,564.09 = 508,470.80/x - Step 3: Cross multiply
916,394.82x = 1,264,564.09 × 508,470.80 - Step 4: Simplify right side
916,394.82x = 642,993,916,383.81 - Step 5: Solve for x
x = 642,993,916,383.81/916,394.82 - Step 6: Final answer
x = 701,655.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.