Finding the Fourth Proportional to 1,201,216.10, 1,657,678.23 and 657,351.92
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Solution
The fourth proportional to 1,201,216.10, 1,657,678.23 and 657,351.92 is: 907,145.66
Step by Step Solution
- Step 1: Write the proportion equation
1,201,216.10 : 1,657,678.23 = 657,351.92 : x - Step 2: Convert to fraction form
1,201,216.10/1,657,678.23 = 657,351.92/x - Step 3: Cross multiply
1,201,216.10x = 1,657,678.23 × 657,351.92 - Step 4: Simplify right side
1,201,216.10x = 1,089,677,971,376.90 - Step 5: Solve for x
x = 1,089,677,971,376.90/1,201,216.10 - Step 6: Final answer
x = 907,145.66
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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.