Finding the Fourth Proportional to 1,401,123.13, 2,101,686.71 and 390,247.99
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Solution
The fourth proportional to 1,401,123.13, 2,101,686.71 and 390,247.99 is: 585,372.55
Step by Step Solution
- Step 1: Write the proportion equation
1,401,123.13 : 2,101,686.71 = 390,247.99 : x - Step 2: Convert to fraction form
1,401,123.13/2,101,686.71 = 390,247.99/x - Step 3: Cross multiply
1,401,123.13x = 2,101,686.71 × 390,247.99 - Step 4: Simplify right side
1,401,123.13x = 820,179,014,187.21 - Step 5: Solve for x
x = 820,179,014,187.21/1,401,123.13 - Step 6: Final answer
x = 585,372.55
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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.