Finding the Fourth Proportional to 647,071.99, 892,922.20 and 371,371.48
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Solution
The fourth proportional to 647,071.99, 892,922.20 and 371,371.48 is: 512,471.32
Step by Step Solution
- Step 1: Write the proportion equation
647,071.99 : 892,922.20 = 371,371.48 : x - Step 2: Convert to fraction form
647,071.99/892,922.20 = 371,371.48/x - Step 3: Cross multiply
647,071.99x = 892,922.20 × 371,371.48 - Step 4: Simplify right side
647,071.99x = 331,605,838,938.86 - Step 5: Solve for x
x = 331,605,838,938.86/647,071.99 - Step 6: Final answer
x = 512,471.32
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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.