Finding the Fourth Proportional to 826,623.70, 1,239,935.55 and 616,671.70
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Solution
The fourth proportional to 826,623.70, 1,239,935.55 and 616,671.70 is: 925,007.55
Step by Step Solution
- Step 1: Write the proportion equation
826,623.70 : 1,239,935.55 = 616,671.70 : x - Step 2: Convert to fraction form
826,623.70/1,239,935.55 = 616,671.70/x - Step 3: Cross multiply
826,623.70x = 1,239,935.55 × 616,671.70 - Step 4: Simplify right side
826,623.70x = 764,633,163,508.94 - Step 5: Solve for x
x = 764,633,163,508.94/826,623.70 - Step 6: Final answer
x = 925,007.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.