Finding the Fourth Proportional to 1,642,634.76, 2,266,812.09 and 917,492.79
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Solution
The fourth proportional to 1,642,634.76, 2,266,812.09 and 917,492.79 is: 1,266,126.71
Step by Step Solution
- Step 1: Write the proportion equation
1,642,634.76 : 2,266,812.09 = 917,492.79 : x - Step 2: Convert to fraction form
1,642,634.76/2,266,812.09 = 917,492.79/x - Step 3: Cross multiply
1,642,634.76x = 2,266,812.09 × 917,492.79 - Step 4: Simplify right side
1,642,634.76x = 2,079,783,748,859.83 - Step 5: Solve for x
x = 2,079,783,748,859.83/1,642,634.76 - Step 6: Final answer
x = 1,266,126.71
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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.