Finding the Fourth Proportional to 818,299.44, 1,129,390.65 and 474,350.52
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Solution
The fourth proportional to 818,299.44, 1,129,390.65 and 474,350.52 is: 654,683.38
Step by Step Solution
- Step 1: Write the proportion equation
818,299.44 : 1,129,390.65 = 474,350.52 : x - Step 2: Convert to fraction form
818,299.44/1,129,390.65 = 474,350.52/x - Step 3: Cross multiply
818,299.44x = 1,129,390.65 × 474,350.52 - Step 4: Simplify right side
818,299.44x = 535,727,043,748.24 - Step 5: Solve for x
x = 535,727,043,748.24/818,299.44 - Step 6: Final answer
x = 654,683.38
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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.