Finding the Fourth Proportional to 1,986,330.14, 2,740,946.14 and 1,114,965.25
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Solution
The fourth proportional to 1,986,330.14, 2,740,946.14 and 1,114,965.25 is: 1,538,545.70
Step by Step Solution
- Step 1: Write the proportion equation
1,986,330.14 : 2,740,946.14 = 1,114,965.25 : x - Step 2: Convert to fraction form
1,986,330.14/2,740,946.14 = 1,114,965.25/x - Step 3: Cross multiply
1,986,330.14x = 2,740,946.14 × 1,114,965.25 - Step 4: Simplify right side
1,986,330.14x = 3,056,059,708,180.80 - Step 5: Solve for x
x = 3,056,059,708,180.80/1,986,330.14 - Step 6: Final answer
x = 1,538,545.70
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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.