Finding the Fourth Proportional to 667,484.19, 1,000,526.45 and 312,198.75
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Solution
The fourth proportional to 667,484.19, 1,000,526.45 and 312,198.75 is: 467,970.79
Step by Step Solution
- Step 1: Write the proportion equation
667,484.19 : 1,000,526.45 = 312,198.75 : x - Step 2: Convert to fraction form
667,484.19/1,000,526.45 = 312,198.75/x - Step 3: Cross multiply
667,484.19x = 1,000,526.45 × 312,198.75 - Step 4: Simplify right side
667,484.19x = 312,363,105,470.94 - Step 5: Solve for x
x = 312,363,105,470.94/667,484.19 - Step 6: Final answer
x = 467,970.79
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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.