Finding the Fourth Proportional to 818,427.99, 1,129,465.67 and 455,851.94
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Solution
The fourth proportional to 818,427.99, 1,129,465.67 and 455,851.94 is: 629,095.20
Step by Step Solution
- Step 1: Write the proportion equation
818,427.99 : 1,129,465.67 = 455,851.94 : x - Step 2: Convert to fraction form
818,427.99/1,129,465.67 = 455,851.94/x - Step 3: Cross multiply
818,427.99x = 1,129,465.67 × 455,851.94 - Step 4: Simplify right side
818,427.99x = 514,869,117,377.30 - Step 5: Solve for x
x = 514,869,117,377.30/818,427.99 - Step 6: Final answer
x = 629,095.20
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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.