Finding the Fourth Proportional to 916,197.91, 1,264,504.88 and 508,430.72
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Solution
The fourth proportional to 916,197.91, 1,264,504.88 and 508,430.72 is: 701,718.62
Step by Step Solution
- Step 1: Write the proportion equation
916,197.91 : 1,264,504.88 = 508,430.72 : x - Step 2: Convert to fraction form
916,197.91/1,264,504.88 = 508,430.72/x - Step 3: Cross multiply
916,197.91x = 1,264,504.88 × 508,430.72 - Step 4: Simplify right side
916,197.91x = 642,913,131,014.25 - Step 5: Solve for x
x = 642,913,131,014.25/916,197.91 - Step 6: Final answer
x = 701,718.62
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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.