Finding the Fourth Proportional to 822,750.20, 1,234,125.30 and 687,447.80
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Solution
The fourth proportional to 822,750.20, 1,234,125.30 and 687,447.80 is: 1,031,171.70
Step by Step Solution
- Step 1: Write the proportion equation
822,750.20 : 1,234,125.30 = 687,447.80 : x - Step 2: Convert to fraction form
822,750.20/1,234,125.30 = 687,447.80/x - Step 3: Cross multiply
822,750.20x = 1,234,125.30 × 687,447.80 - Step 4: Simplify right side
822,750.20x = 848,396,722,409.34 - Step 5: Solve for x
x = 848,396,722,409.34/822,750.20 - Step 6: Final answer
x = 1,031,171.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.