Finding the Fourth Proportional to 663,624.84, 915,803.18 and 361,818.84
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Solution
The fourth proportional to 663,624.84, 915,803.18 and 361,818.84 is: 499,310.49
Step by Step Solution
- Step 1: Write the proportion equation
663,624.84 : 915,803.18 = 361,818.84 : x - Step 2: Convert to fraction form
663,624.84/915,803.18 = 361,818.84/x - Step 3: Cross multiply
663,624.84x = 915,803.18 × 361,818.84 - Step 4: Simplify right side
663,624.84x = 331,354,844,255.91 - Step 5: Solve for x
x = 331,354,844,255.91/663,624.84 - Step 6: Final answer
x = 499,310.49
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1.5x scale
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.