Finding the Fourth Proportional to 1,401,122.13, 2,101,685.21 and 390,246.99
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Solution
The fourth proportional to 1,401,122.13, 2,101,685.21 and 390,246.99 is: 585,371.05
Step by Step Solution
- Step 1: Write the proportion equation
1,401,122.13 : 2,101,685.21 = 390,246.99 : x - Step 2: Convert to fraction form
1,401,122.13/2,101,685.21 = 390,246.99/x - Step 3: Cross multiply
1,401,122.13x = 2,101,685.21 × 390,246.99 - Step 4: Simplify right side
1,401,122.13x = 820,176,327,130.02 - Step 5: Solve for x
x = 820,176,327,130.02/1,401,122.13 - Step 6: Final answer
x = 585,371.05
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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.