Finding the Fourth Proportional to 818,812.13, 1,129,965.21 and 474,851.99
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Solution
The fourth proportional to 818,812.13, 1,129,965.21 and 474,851.99 is: 655,298.33
Step by Step Solution
- Step 1: Write the proportion equation
818,812.13 : 1,129,965.21 = 474,851.99 : x - Step 2: Convert to fraction form
818,812.13/1,129,965.21 = 474,851.99/x - Step 3: Cross multiply
818,812.13x = 1,129,965.21 × 474,851.99 - Step 4: Simplify right side
818,812.13x = 536,566,224,136.57 - Step 5: Solve for x
x = 536,566,224,136.57/818,812.13 - Step 6: Final answer
x = 655,298.33
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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.