Finding the Fourth Proportional to 499,048.68, 688,688.92 and 272,694.18
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Solution
The fourth proportional to 499,048.68, 688,688.92 and 272,694.18 is: 376,318.92
Step by Step Solution
- Step 1: Write the proportion equation
499,048.68 : 688,688.92 = 272,694.18 : x - Step 2: Convert to fraction form
499,048.68/688,688.92 = 272,694.18/x - Step 3: Cross multiply
499,048.68x = 688,688.92 × 272,694.18 - Step 4: Simplify right side
499,048.68x = 187,801,460,314.49 - Step 5: Solve for x
x = 187,801,460,314.49/499,048.68 - Step 6: Final answer
x = 376,318.92
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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.