Finding the Fourth Proportional to 620,603.08, 930,904.67 and 199,878.96
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Solution
The fourth proportional to 620,603.08, 930,904.67 and 199,878.96 is: 299,818.45
Step by Step Solution
- Step 1: Write the proportion equation
620,603.08 : 930,904.67 = 199,878.96 : x - Step 2: Convert to fraction form
620,603.08/930,904.67 = 199,878.96/x - Step 3: Cross multiply
620,603.08x = 930,904.67 × 199,878.96 - Step 4: Simplify right side
620,603.08x = 186,068,253,143.92 - Step 5: Solve for x
x = 186,068,253,143.92/620,603.08 - Step 6: Final answer
x = 299,818.45
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1.5x scale
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.