Finding the Fourth Proportional to 1,286,637.29, 1,775,772.41 and 713,861.99
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Solution
The fourth proportional to 1,286,637.29, 1,775,772.41 and 713,861.99 is: 985,247.70
Step by Step Solution
- Step 1: Write the proportion equation
1,286,637.29 : 1,775,772.41 = 713,861.99 : x - Step 2: Convert to fraction form
1,286,637.29/1,775,772.41 = 713,861.99/x - Step 3: Cross multiply
1,286,637.29x = 1,775,772.41 × 713,861.99 - Step 4: Simplify right side
1,286,637.29x = 1,267,656,426,389.70 - Step 5: Solve for x
x = 1,267,656,426,389.70/1,286,637.29 - Step 6: Final answer
x = 985,247.70
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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.