Finding the Fourth Proportional to 1,247,415.85, 1,721,430.44 and 696,125.66
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Solution
The fourth proportional to 1,247,415.85, 1,721,430.44 and 696,125.66 is: 960,651.49
Step by Step Solution
- Step 1: Write the proportion equation
1,247,415.85 : 1,721,430.44 = 696,125.66 : x - Step 2: Convert to fraction form
1,247,415.85/1,721,430.44 = 696,125.66/x - Step 3: Cross multiply
1,247,415.85x = 1,721,430.44 × 696,125.66 - Step 4: Simplify right side
1,247,415.85x = 1,198,331,901,189.09 - Step 5: Solve for x
x = 1,198,331,901,189.09/1,247,415.85 - Step 6: Final answer
x = 960,651.49
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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.