Finding the Fourth Proportional to 907,329.79, 1,252,119.63 and 499,472.65
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Solution
The fourth proportional to 907,329.79, 1,252,119.63 and 499,472.65 is: 689,274.75
Step by Step Solution
- Step 1: Write the proportion equation
907,329.79 : 1,252,119.63 = 499,472.65 : x - Step 2: Convert to fraction form
907,329.79/1,252,119.63 = 499,472.65/x - Step 3: Cross multiply
907,329.79x = 1,252,119.63 × 499,472.65 - Step 4: Simplify right side
907,329.79x = 625,399,509,713.12 - Step 5: Solve for x
x = 625,399,509,713.12/907,329.79 - Step 6: Final answer
x = 689,274.75
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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.