Finding the Fourth Proportional to 910,942.40, 1,363,303.20 and 836,292.80
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Solution
The fourth proportional to 910,942.40, 1,363,303.20 and 836,292.80 is: 1,251,583.69
Step by Step Solution
- Step 1: Write the proportion equation
910,942.40 : 1,363,303.20 = 836,292.80 : x - Step 2: Convert to fraction form
910,942.40/1,363,303.20 = 836,292.80/x - Step 3: Cross multiply
910,942.40x = 1,363,303.20 × 836,292.80 - Step 4: Simplify right side
910,942.40x = 1,140,120,650,376.96 - Step 5: Solve for x
x = 1,140,120,650,376.96/910,942.40 - Step 6: Final answer
x = 1,251,583.69
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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.