Finding the Fourth Proportional to 687,566.18, 948,826.62 and 381,624.72
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Solution
The fourth proportional to 687,566.18, 948,826.62 and 381,624.72 is: 526,633.95
Step by Step Solution
- Step 1: Write the proportion equation
687,566.18 : 948,826.62 = 381,624.72 : x - Step 2: Convert to fraction form
687,566.18/948,826.62 = 381,624.72/x - Step 3: Cross multiply
687,566.18x = 948,826.62 × 381,624.72 - Step 4: Simplify right side
687,566.18x = 362,095,693,186.05 - Step 5: Solve for x
x = 362,095,693,186.05/687,566.18 - Step 6: Final answer
x = 526,633.95
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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.