Finding the Fourth Proportional to 1,278,747.20, 1,764,545.50 and 705,750.47
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Solution
The fourth proportional to 1,278,747.20, 1,764,545.50 and 705,750.47 is: 973,866.30
Step by Step Solution
- Step 1: Write the proportion equation
1,278,747.20 : 1,764,545.50 = 705,750.47 : x - Step 2: Convert to fraction form
1,278,747.20/1,764,545.50 = 705,750.47/x - Step 3: Cross multiply
1,278,747.20x = 1,764,545.50 × 705,750.47 - Step 4: Simplify right side
1,278,747.20x = 1,245,328,803,609.91 - Step 5: Solve for x
x = 1,245,328,803,609.91/1,278,747.20 - Step 6: Final answer
x = 973,866.30
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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.