Finding the Fourth Proportional to 907,285.19, 1,252,043.64 and 499,378.28
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Solution
The fourth proportional to 907,285.19, 1,252,043.64 and 499,378.28 is: 689,136.56
Step by Step Solution
- Step 1: Write the proportion equation
907,285.19 : 1,252,043.64 = 499,378.28 : x - Step 2: Convert to fraction form
907,285.19/1,252,043.64 = 499,378.28/x - Step 3: Cross multiply
907,285.19x = 1,252,043.64 × 499,378.28 - Step 4: Simplify right side
907,285.19x = 625,243,393,167.92 - Step 5: Solve for x
x = 625,243,393,167.92/907,285.19 - Step 6: Final answer
x = 689,136.56
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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.