Finding the Fourth Proportional to 811,848.13, 1,120,352.60 and 449,296.99
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Solution
The fourth proportional to 811,848.13, 1,120,352.60 and 449,296.99 is: 620,031.05
Step by Step Solution
- Step 1: Write the proportion equation
811,848.13 : 1,120,352.60 = 449,296.99 : x - Step 2: Convert to fraction form
811,848.13/1,120,352.60 = 449,296.99/x - Step 3: Cross multiply
811,848.13x = 1,120,352.60 × 449,296.99 - Step 4: Simplify right side
811,848.13x = 503,371,050,918.67 - Step 5: Solve for x
x = 503,371,050,918.67/811,848.13 - Step 6: Final answer
x = 620,031.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.