Finding the Fourth Proportional to 1,205,381.10, 1,663,420.66 and 661,525.68
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Solution
The fourth proportional to 1,205,381.10, 1,663,420.66 and 661,525.68 is: 912,902.55
Step by Step Solution
- Step 1: Write the proportion equation
1,205,381.10 : 1,663,420.66 = 661,525.68 : x - Step 2: Convert to fraction form
1,205,381.10/1,663,420.66 = 661,525.68/x - Step 3: Cross multiply
1,205,381.10x = 1,663,420.66 × 661,525.68 - Step 4: Simplify right side
1,205,381.10x = 1,100,395,483,232.55 - Step 5: Solve for x
x = 1,100,395,483,232.55/1,205,381.10 - Step 6: Final answer
x = 912,902.55
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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.