Finding the Fourth Proportional to 816,830.10, 1,225,245.15 and 751,511.70
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Solution
The fourth proportional to 816,830.10, 1,225,245.15 and 751,511.70 is: 1,127,267.55
Step by Step Solution
- Step 1: Write the proportion equation
816,830.10 : 1,225,245.15 = 751,511.70 : x - Step 2: Convert to fraction form
816,830.10/1,225,245.15 = 751,511.70/x - Step 3: Cross multiply
816,830.10x = 1,225,245.15 × 751,511.70 - Step 4: Simplify right side
816,830.10x = 920,786,065,593.26 - Step 5: Solve for x
x = 920,786,065,593.26/816,830.10 - Step 6: Final answer
x = 1,127,267.55
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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.