Finding the Fourth Proportional to 1,259,689.75, 1,738,363 and 686,734.02
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Solution
The fourth proportional to 1,259,689.75, 1,738,363 and 686,734.02 is: 947,688.12
Step by Step Solution
- Step 1: Write the proportion equation
1,259,689.75 : 1,738,363 = 686,734.02 : x - Step 2: Convert to fraction form
1,259,689.75/1,738,363 = 686,734.02/x - Step 3: Cross multiply
1,259,689.75x = 1,738,363 × 686,734.02 - Step 4: Simplify right side
1,259,689.75x = 1,193,793,011,209.26 - Step 5: Solve for x
x = 1,193,793,011,209.26/1,259,689.75 - Step 6: Final answer
x = 947,688.12
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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.