Finding the Fourth Proportional to 713,913.22, 985,201.74 and 391,625.92
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Solution
The fourth proportional to 713,913.22, 985,201.74 and 391,625.92 is: 540,444.59
Step by Step Solution
- Step 1: Write the proportion equation
713,913.22 : 985,201.74 = 391,625.92 : x - Step 2: Convert to fraction form
713,913.22/985,201.74 = 391,625.92/x - Step 3: Cross multiply
713,913.22x = 985,201.74 × 391,625.92 - Step 4: Simplify right side
713,913.22x = 385,830,537,813.10 - Step 5: Solve for x
x = 385,830,537,813.10/713,913.22 - Step 6: Final answer
x = 540,444.59
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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.