Finding the Fourth Proportional to 1,278,761.36, 1,764,564.95 and 705,764.59
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Solution
The fourth proportional to 1,278,761.36, 1,764,564.95 and 705,764.59 is: 973,885.75
Step by Step Solution
- Step 1: Write the proportion equation
1,278,761.36 : 1,764,564.95 = 705,764.59 : x - Step 2: Convert to fraction form
1,278,761.36/1,764,564.95 = 705,764.59/x - Step 3: Cross multiply
1,278,761.36x = 1,764,564.95 × 705,764.59 - Step 4: Simplify right side
1,278,761.36x = 1,245,367,455,818.12 - Step 5: Solve for x
x = 1,245,367,455,818.12/1,278,761.36 - Step 6: Final answer
x = 973,885.75
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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.