Finding the Fourth Proportional to 1,431,903.99, 1,976,027.10 and 787,365.93
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Solution
The fourth proportional to 1,431,903.99, 1,976,027.10 and 787,365.93 is: 1,086,564.76
Step by Step Solution
- Step 1: Write the proportion equation
1,431,903.99 : 1,976,027.10 = 787,365.93 : x - Step 2: Convert to fraction form
1,431,903.99/1,976,027.10 = 787,365.93/x - Step 3: Cross multiply
1,431,903.99x = 1,976,027.10 × 787,365.93 - Step 4: Simplify right side
1,431,903.99x = 1,555,856,419,754.18 - Step 5: Solve for x
x = 1,555,856,419,754.18/1,431,903.99 - Step 6: Final answer
x = 1,086,564.76
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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.