Finding the Fourth Proportional to 991,656.50, 1,486,893.15 and 392,703.62
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Solution
The fourth proportional to 991,656.50, 1,486,893.15 and 392,703.62 is: 588,821.15
Step by Step Solution
- Step 1: Write the proportion equation
991,656.50 : 1,486,893.15 = 392,703.62 : x - Step 2: Convert to fraction form
991,656.50/1,486,893.15 = 392,703.62/x - Step 3: Cross multiply
991,656.50x = 1,486,893.15 × 392,703.62 - Step 4: Simplify right side
991,656.50x = 583,908,322,558.20 - Step 5: Solve for x
x = 583,908,322,558.20/991,656.50 - Step 6: Final answer
x = 588,821.15
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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.