Finding the Fourth Proportional to 645,996.61, 891,466.62 and 359,516.62
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Solution
The fourth proportional to 645,996.61, 891,466.62 and 359,516.62 is: 496,128.09
Step by Step Solution
- Step 1: Write the proportion equation
645,996.61 : 891,466.62 = 359,516.62 : x - Step 2: Convert to fraction form
645,996.61/891,466.62 = 359,516.62/x - Step 3: Cross multiply
645,996.61x = 891,466.62 × 359,516.62 - Step 4: Simplify right side
645,996.61x = 320,497,066,065.22 - Step 5: Solve for x
x = 320,497,066,065.22/645,996.61 - Step 6: Final answer
x = 496,128.09
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1.5x scale
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.