Finding the Fourth Proportional to 1,497,641.40, 2,066,744.70 and 818,577.90
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Solution
The fourth proportional to 1,497,641.40, 2,066,744.70 and 818,577.90 is: 1,129,637.27
Step by Step Solution
- Step 1: Write the proportion equation
1,497,641.40 : 2,066,744.70 = 818,577.90 : x - Step 2: Convert to fraction form
1,497,641.40/2,066,744.70 = 818,577.90/x - Step 3: Cross multiply
1,497,641.40x = 2,066,744.70 × 818,577.90 - Step 4: Simplify right side
1,497,641.40x = 1,691,791,536,362.13 - Step 5: Solve for x
x = 1,691,791,536,362.13/1,497,641.40 - Step 6: Final answer
x = 1,129,637.27
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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.