Finding the Fourth Proportional to 910,845.20, 1,366,267.80 and 639,219.80
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Solution
The fourth proportional to 910,845.20, 1,366,267.80 and 639,219.80 is: 958,829.70
Step by Step Solution
- Step 1: Write the proportion equation
910,845.20 : 1,366,267.80 = 639,219.80 : x - Step 2: Convert to fraction form
910,845.20/1,366,267.80 = 639,219.80/x - Step 3: Cross multiply
910,845.20x = 1,366,267.80 × 639,219.80 - Step 4: Simplify right side
910,845.20x = 873,345,429,862.44 - Step 5: Solve for x
x = 873,345,429,862.44/910,845.20 - Step 6: Final answer
x = 958,829.70
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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.