Finding the Fourth Proportional to 1,278,654.71, 1,764,518.45 and 697,881.99
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Solution
The fourth proportional to 1,278,654.71, 1,764,518.45 and 697,881.99 is: 963,063.48
Step by Step Solution
- Step 1: Write the proportion equation
1,278,654.71 : 1,764,518.45 = 697,881.99 : x - Step 2: Convert to fraction form
1,278,654.71/1,764,518.45 = 697,881.99/x - Step 3: Cross multiply
1,278,654.71x = 1,764,518.45 × 697,881.99 - Step 4: Simplify right side
1,278,654.71x = 1,231,425,647,277.72 - Step 5: Solve for x
x = 1,231,425,647,277.72/1,278,654.71 - Step 6: Final answer
x = 963,063.48
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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.