Finding the Fourth Proportional to 1,577,600.81, 2,180,766.81 and 1,407,207.53
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Solution
The fourth proportional to 1,577,600.81, 2,180,766.81 and 1,407,207.53 is: 1,945,226.86
Step by Step Solution
- Step 1: Write the proportion equation
1,577,600.81 : 2,180,766.81 = 1,407,207.53 : x - Step 2: Convert to fraction form
1,577,600.81/2,180,766.81 = 1,407,207.53/x - Step 3: Cross multiply
1,577,600.81x = 2,180,766.81 × 1,407,207.53 - Step 4: Simplify right side
1,577,600.81x = 3,068,791,465,302.25 - Step 5: Solve for x
x = 3,068,791,465,302.25/1,577,600.81 - Step 6: Final answer
x = 1,945,226.86
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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.