Finding the Fourth Proportional to 1,201,175.49, 1,657,622.34 and 657,311.40
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Solution
The fourth proportional to 1,201,175.49, 1,657,622.34 and 657,311.40 is: 907,089.82
Step by Step Solution
- Step 1: Write the proportion equation
1,201,175.49 : 1,657,622.34 = 657,311.40 : x - Step 2: Convert to fraction form
1,201,175.49/1,657,622.34 = 657,311.40/x - Step 3: Cross multiply
1,201,175.49x = 1,657,622.34 × 657,311.40 - Step 4: Simplify right side
1,201,175.49x = 1,089,574,060,976.68 - Step 5: Solve for x
x = 1,089,574,060,976.68/1,201,175.49 - Step 6: Final answer
x = 907,089.82
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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.