Finding the Fourth Proportional to 471,705.12, 651,589.92 and 376,876.80
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Solution
The fourth proportional to 471,705.12, 651,589.92 and 376,876.80 is: 520,598.81
Step by Step Solution
- Step 1: Write the proportion equation
471,705.12 : 651,589.92 = 376,876.80 : x - Step 2: Convert to fraction form
471,705.12/651,589.92 = 376,876.80/x - Step 3: Cross multiply
471,705.12x = 651,589.92 × 376,876.80 - Step 4: Simplify right side
471,705.12x = 245,569,123,961.86 - Step 5: Solve for x
x = 245,569,123,961.86/471,705.12 - Step 6: Final answer
x = 520,598.81
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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.