Finding the Fourth Proportional to 498,857.59, 688,422.40 and 272,503.09
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Solution
The fourth proportional to 498,857.59, 688,422.40 and 272,503.09 is: 376,053.68
Step by Step Solution
- Step 1: Write the proportion equation
498,857.59 : 688,422.40 = 272,503.09 : x - Step 2: Convert to fraction form
498,857.59/688,422.40 = 272,503.09/x - Step 3: Cross multiply
498,857.59x = 688,422.40 × 272,503.09 - Step 4: Simplify right side
498,857.59x = 187,597,231,225.22 - Step 5: Solve for x
x = 187,597,231,225.22/498,857.59 - Step 6: Final answer
x = 376,053.68
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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.