Finding the Fourth Proportional to 660,645.86, 911,660.77 and 374,167.99
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Solution
The fourth proportional to 660,645.86, 911,660.77 and 374,167.99 is: 516,334.55
Step by Step Solution
- Step 1: Write the proportion equation
660,645.86 : 911,660.77 = 374,167.99 : x - Step 2: Convert to fraction form
660,645.86/911,660.77 = 374,167.99/x - Step 3: Cross multiply
660,645.86x = 911,660.77 × 374,167.99 - Step 4: Simplify right side
660,645.86x = 341,114,279,480.04 - Step 5: Solve for x
x = 341,114,279,480.04/660,645.86 - Step 6: Final answer
x = 516,334.55
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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.