Finding the Fourth Proportional to 916,638.18, 1,264,941.66 and 508,716.34
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Solution
The fourth proportional to 916,638.18, 1,264,941.66 and 508,716.34 is: 702,017.99
Step by Step Solution
- Step 1: Write the proportion equation
916,638.18 : 1,264,941.66 = 508,716.34 : x - Step 2: Convert to fraction form
916,638.18/1,264,941.66 = 508,716.34/x - Step 3: Cross multiply
916,638.18x = 1,264,941.66 × 508,716.34 - Step 4: Simplify right side
916,638.18x = 643,496,491,588.72 - Step 5: Solve for x
x = 643,496,491,588.72/916,638.18 - Step 6: Final answer
x = 702,017.99
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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.