Finding the Fourth Proportional to 391,906.24, 586,862.26 and 258,381.40
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Solution
The fourth proportional to 391,906.24, 586,862.26 and 258,381.40 is: 386,914.72
Step by Step Solution
- Step 1: Write the proportion equation
391,906.24 : 586,862.26 = 258,381.40 : x - Step 2: Convert to fraction form
391,906.24/586,862.26 = 258,381.40/x - Step 3: Cross multiply
391,906.24x = 586,862.26 × 258,381.40 - Step 4: Simplify right side
391,906.24x = 151,634,292,345.96 - Step 5: Solve for x
x = 151,634,292,345.96/391,906.24 - Step 6: Final answer
x = 386,914.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.