Finding the Fourth Proportional to 1,266,784.27, 1,748,163.20 and 686,011.95
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Solution
The fourth proportional to 1,266,784.27, 1,748,163.20 and 686,011.95 is: 946,696.98
Step by Step Solution
- Step 1: Write the proportion equation
1,266,784.27 : 1,748,163.20 = 686,011.95 : x - Step 2: Convert to fraction form
1,266,784.27/1,748,163.20 = 686,011.95/x - Step 3: Cross multiply
1,266,784.27x = 1,748,163.20 × 686,011.95 - Step 4: Simplify right side
1,266,784.27x = 1,199,260,842,320.18 - Step 5: Solve for x
x = 1,199,260,842,320.18/1,266,784.27 - Step 6: Final answer
x = 946,696.98
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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.