Finding the Fourth Proportional to 811,794.20, 1,217,691.30 and 575,403.80
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Solution
The fourth proportional to 811,794.20, 1,217,691.30 and 575,403.80 is: 863,105.70
Step by Step Solution
- Step 1: Write the proportion equation
811,794.20 : 1,217,691.30 = 575,403.80 : x - Step 2: Convert to fraction form
811,794.20/1,217,691.30 = 575,403.80/x - Step 3: Cross multiply
811,794.20x = 1,217,691.30 × 575,403.80 - Step 4: Simplify right side
811,794.20x = 700,664,201,246.94 - Step 5: Solve for x
x = 700,664,201,246.94/811,794.20 - Step 6: Final answer
x = 863,105.70
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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.