Finding the Fourth Proportional to 2,151,219.28, 2,968,569.80 and 1,184,160.68
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Solution
The fourth proportional to 2,151,219.28, 2,968,569.80 and 1,184,160.68 is: 1,634,079.64
Step by Step Solution
- Step 1: Write the proportion equation
2,151,219.28 : 2,968,569.80 = 1,184,160.68 : x - Step 2: Convert to fraction form
2,151,219.28/2,968,569.80 = 1,184,160.68/x - Step 3: Cross multiply
2,151,219.28x = 2,968,569.80 × 1,184,160.68 - Step 4: Simplify right side
2,151,219.28x = 3,515,263,632,995.46 - Step 5: Solve for x
x = 3,515,263,632,995.46/2,151,219.28 - Step 6: Final answer
x = 1,634,079.64
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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.