Finding the Fourth Proportional to 1,913,414.76, 2,637,677.70 and 1,224,988.20
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Solution
The fourth proportional to 1,913,414.76, 2,637,677.70 and 1,224,988.20 is: 1,688,668.93
Step by Step Solution
- Step 1: Write the proportion equation
1,913,414.76 : 2,637,677.70 = 1,224,988.20 : x - Step 2: Convert to fraction form
1,913,414.76/2,637,677.70 = 1,224,988.20/x - Step 3: Cross multiply
1,913,414.76x = 2,637,677.70 × 1,224,988.20 - Step 4: Simplify right side
1,913,414.76x = 3,231,124,057,903.14 - Step 5: Solve for x
x = 3,231,124,057,903.14/1,913,414.76 - Step 6: Final answer
x = 1,688,668.93
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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.