Finding the Fourth Proportional to 1,242,180.17, 1,863,270.68 and 389,317.99
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Solution
The fourth proportional to 1,242,180.17, 1,863,270.68 and 389,317.99 is: 583,977.11
Step by Step Solution
- Step 1: Write the proportion equation
1,242,180.17 : 1,863,270.68 = 389,317.99 : x - Step 2: Convert to fraction form
1,242,180.17/1,863,270.68 = 389,317.99/x - Step 3: Cross multiply
1,242,180.17x = 1,863,270.68 × 389,317.99 - Step 4: Simplify right side
1,242,180.17x = 725,404,789,532.99 - Step 5: Solve for x
x = 725,404,789,532.99/1,242,180.17 - Step 6: Final answer
x = 583,977.11
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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.