Finding the Fourth Proportional to 907,639.92, 1,252,572.93 and 499,771.71
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Solution
The fourth proportional to 907,639.92, 1,252,572.93 and 499,771.71 is: 689,701.39
Step by Step Solution
- Step 1: Write the proportion equation
907,639.92 : 1,252,572.93 = 499,771.71 : x - Step 2: Convert to fraction form
907,639.92/1,252,572.93 = 499,771.71/x - Step 3: Cross multiply
907,639.92x = 1,252,572.93 × 499,771.71 - Step 4: Simplify right side
907,639.92x = 626,000,515,125.81 - Step 5: Solve for x
x = 626,000,515,125.81/907,639.92 - Step 6: Final answer
x = 689,701.39
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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.