Finding the Fourth Proportional to 498,858.09, 688,423.10 and 272,503.59
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Solution
The fourth proportional to 498,858.09, 688,423.10 and 272,503.59 is: 376,054.37
Step by Step Solution
- Step 1: Write the proportion equation
498,858.09 : 688,423.10 = 272,503.59 : x - Step 2: Convert to fraction form
498,858.09/688,423.10 = 272,503.59/x - Step 3: Cross multiply
498,858.09x = 688,423.10 × 272,503.59 - Step 4: Simplify right side
498,858.09x = 187,597,764,826.41 - Step 5: Solve for x
x = 187,597,764,826.41/498,858.09 - Step 6: Final answer
x = 376,054.37
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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.