Finding the Fourth Proportional to 1,118,402.20, 1,542,326.70 and 751,707.64
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Solution
The fourth proportional to 1,118,402.20, 1,542,326.70 and 751,707.64 is: 1,036,638.49
Step by Step Solution
- Step 1: Write the proportion equation
1,118,402.20 : 1,542,326.70 = 751,707.64 : x - Step 2: Convert to fraction form
1,118,402.20/1,542,326.70 = 751,707.64/x - Step 3: Cross multiply
1,118,402.20x = 1,542,326.70 × 751,707.64 - Step 4: Simplify right side
1,118,402.20x = 1,159,378,763,765.99 - Step 5: Solve for x
x = 1,159,378,763,765.99/1,118,402.20 - Step 6: Final answer
x = 1,036,638.49
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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.