Finding the Fourth Proportional to 818,154.70, 1,129,191.15 and 527,684.62
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Solution
The fourth proportional to 818,154.70, 1,129,191.15 and 527,684.62 is: 728,293.56
Step by Step Solution
- Step 1: Write the proportion equation
818,154.70 : 1,129,191.15 = 527,684.62 : x - Step 2: Convert to fraction form
818,154.70/1,129,191.15 = 527,684.62/x - Step 3: Cross multiply
818,154.70x = 1,129,191.15 × 527,684.62 - Step 4: Simplify right side
818,154.70x = 595,856,802,895.11 - Step 5: Solve for x
x = 595,856,802,895.11/818,154.70 - Step 6: Final answer
x = 728,293.56
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1.5x scale
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.