Finding the Fourth Proportional to 1,267,397.55, 1,749,078.66 and 723,707.99
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Solution
The fourth proportional to 1,267,397.55, 1,749,078.66 and 723,707.99 is: 998,757.01
Step by Step Solution
- Step 1: Write the proportion equation
1,267,397.55 : 1,749,078.66 = 723,707.99 : x - Step 2: Convert to fraction form
1,267,397.55/1,749,078.66 = 723,707.99/x - Step 3: Cross multiply
1,267,397.55x = 1,749,078.66 × 723,707.99 - Step 4: Simplify right side
1,267,397.55x = 1,265,822,192,635.10 - Step 5: Solve for x
x = 1,265,822,192,635.10/1,267,397.55 - Step 6: Final answer
x = 998,757.01
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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.