Finding the Fourth Proportional to 487,290.12, 672,522.11 and 272,442.88
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Solution
The fourth proportional to 487,290.12, 672,522.11 and 272,442.88 is: 376,005.70
Step by Step Solution
- Step 1: Write the proportion equation
487,290.12 : 672,522.11 = 272,442.88 : x - Step 2: Convert to fraction form
487,290.12/672,522.11 = 272,442.88/x - Step 3: Cross multiply
487,290.12x = 672,522.11 × 272,442.88 - Step 4: Simplify right side
487,290.12x = 183,223,860,512.08 - Step 5: Solve for x
x = 183,223,860,512.08/487,290.12 - Step 6: Final answer
x = 376,005.70
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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.