Finding the Fourth Proportional to 910,486.80, 1,365,730.20 and 378,389.70
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Solution
The fourth proportional to 910,486.80, 1,365,730.20 and 378,389.70 is: 567,584.55
Step by Step Solution
- Step 1: Write the proportion equation
910,486.80 : 1,365,730.20 = 378,389.70 : x - Step 2: Convert to fraction form
910,486.80/1,365,730.20 = 378,389.70/x - Step 3: Cross multiply
910,486.80x = 1,365,730.20 × 378,389.70 - Step 4: Simplify right side
910,486.80x = 516,778,240,658.94 - Step 5: Solve for x
x = 516,778,240,658.94/910,486.80 - Step 6: Final answer
x = 567,584.55
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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.