Finding the Fourth Proportional to 1,278,703.99, 1,764,602.78 and 705,744.21
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Solution
The fourth proportional to 1,278,703.99, 1,764,602.78 and 705,744.21 is: 973,922.19
Step by Step Solution
- Step 1: Write the proportion equation
1,278,703.99 : 1,764,602.78 = 705,744.21 : x - Step 2: Convert to fraction form
1,278,703.99/1,764,602.78 = 705,744.21/x - Step 3: Cross multiply
1,278,703.99x = 1,764,602.78 × 705,744.21 - Step 4: Simplify right side
1,278,703.99x = 1,245,358,194,934.90 - Step 5: Solve for x
x = 1,245,358,194,934.90/1,278,703.99 - Step 6: Final answer
x = 973,922.19
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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.