Finding the Fourth Proportional to 1,278,120.89, 1,763,812.58 and 705,177.92
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Solution
The fourth proportional to 1,278,120.89, 1,763,812.58 and 705,177.92 is: 973,148.70
Step by Step Solution
- Step 1: Write the proportion equation
1,278,120.89 : 1,763,812.58 = 705,177.92 : x - Step 2: Convert to fraction form
1,278,120.89/1,763,812.58 = 705,177.92/x - Step 3: Cross multiply
1,278,120.89x = 1,763,812.58 × 705,177.92 - Step 4: Simplify right side
1,278,120.89x = 1,243,801,674,089.28 - Step 5: Solve for x
x = 1,243,801,674,089.28/1,278,120.89 - Step 6: Final answer
x = 973,148.70
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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.