Finding the Fourth Proportional to 663,377.12, 915,450.30 and 372,988.95
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Solution
The fourth proportional to 663,377.12, 915,450.30 and 372,988.95 is: 514,719.06
Step by Step Solution
- Step 1: Write the proportion equation
663,377.12 : 915,450.30 = 372,988.95 : x - Step 2: Convert to fraction form
663,377.12/915,450.30 = 372,988.95/x - Step 3: Cross multiply
663,377.12x = 915,450.30 × 372,988.95 - Step 4: Simplify right side
663,377.12x = 341,452,846,174.19 - Step 5: Solve for x
x = 341,452,846,174.19/663,377.12 - Step 6: Final answer
x = 514,719.06
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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.