Finding the Fourth Proportional to 852,311.20, 1,176,246.48 and 489,852.40
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Solution
The fourth proportional to 852,311.20, 1,176,246.48 and 489,852.40 is: 676,029.09
Step by Step Solution
- Step 1: Write the proportion equation
852,311.20 : 1,176,246.48 = 489,852.40 : x - Step 2: Convert to fraction form
852,311.20/1,176,246.48 = 489,852.40/x - Step 3: Cross multiply
852,311.20x = 1,176,246.48 × 489,852.40 - Step 4: Simplify right side
852,311.20x = 576,187,161,219.55 - Step 5: Solve for x
x = 576,187,161,219.55/852,311.20 - Step 6: Final answer
x = 676,029.09
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1.5x scale
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.