Finding the Fourth Proportional to 894,221.42, 1,237,274.78 and 779,738.81
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Solution
The fourth proportional to 894,221.42, 1,237,274.78 and 779,738.81 is: 1,078,872.79
Step by Step Solution
- Step 1: Write the proportion equation
894,221.42 : 1,237,274.78 = 779,738.81 : x - Step 2: Convert to fraction form
894,221.42/1,237,274.78 = 779,738.81/x - Step 3: Cross multiply
894,221.42x = 1,237,274.78 × 779,738.81 - Step 4: Simplify right side
894,221.42x = 964,751,154,515.14 - Step 5: Solve for x
x = 964,751,154,515.14/894,221.42 - Step 6: Final answer
x = 1,078,872.79
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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.