Finding the Fourth Proportional to 498,777.63, 688,313.13 and 272,423.67
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Solution
The fourth proportional to 498,777.63, 688,313.13 and 272,423.67 is: 375,944.66
Step by Step Solution
- Step 1: Write the proportion equation
498,777.63 : 688,313.13 = 272,423.67 : x - Step 2: Convert to fraction form
498,777.63/688,313.13 = 272,423.67/x - Step 3: Cross multiply
498,777.63x = 688,313.13 × 272,423.67 - Step 4: Simplify right side
498,777.63x = 187,512,784,180.10 - Step 5: Solve for x
x = 187,512,784,180.10/498,777.63 - Step 6: Final answer
x = 375,944.66
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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.