Finding the Fourth Proportional to 645,386.05, 967,748.59 and 379,226.53
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Solution
The fourth proportional to 645,386.05, 967,748.59 and 379,226.53 is: 568,645.60
Step by Step Solution
- Step 1: Write the proportion equation
645,386.05 : 967,748.59 = 379,226.53 : x - Step 2: Convert to fraction form
645,386.05/967,748.59 = 379,226.53/x - Step 3: Cross multiply
645,386.05x = 967,748.59 × 379,226.53 - Step 4: Simplify right side
645,386.05x = 366,995,932,963.22 - Step 5: Solve for x
x = 366,995,932,963.22/645,386.05 - Step 6: Final answer
x = 568,645.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.