Finding the Fourth Proportional to 664,444.36, 916,825.08 and 392,474.52
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Solution
The fourth proportional to 664,444.36, 916,825.08 and 392,474.52 is: 541,550.96
Step by Step Solution
- Step 1: Write the proportion equation
664,444.36 : 916,825.08 = 392,474.52 : x - Step 2: Convert to fraction form
664,444.36/916,825.08 = 392,474.52/x - Step 3: Cross multiply
664,444.36x = 916,825.08 × 392,474.52 - Step 4: Simplify right side
664,444.36x = 359,830,483,196.96 - Step 5: Solve for x
x = 359,830,483,196.96/664,444.36 - Step 6: Final answer
x = 541,550.96
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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.