Finding the Fourth Proportional to 916,191.16, 1,264,495.57 and 508,423.97
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Solution
The fourth proportional to 916,191.16, 1,264,495.57 and 508,423.97 is: 701,709.30
Step by Step Solution
- Step 1: Write the proportion equation
916,191.16 : 1,264,495.57 = 508,423.97 : x - Step 2: Convert to fraction form
916,191.16/1,264,495.57 = 508,423.97/x - Step 3: Cross multiply
916,191.16x = 1,264,495.57 × 508,423.97 - Step 4: Simplify right side
916,191.16x = 642,899,859,636.99 - Step 5: Solve for x
x = 642,899,859,636.99/916,191.16 - Step 6: Final answer
x = 701,709.30
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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.