Finding the Fourth Proportional to 1,278,106.52, 1,763,792.68 and 705,163.54
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Solution
The fourth proportional to 1,278,106.52, 1,763,792.68 and 705,163.54 is: 973,128.82
Step by Step Solution
- Step 1: Write the proportion equation
1,278,106.52 : 1,763,792.68 = 705,163.54 : x - Step 2: Convert to fraction form
1,278,106.52/1,763,792.68 = 705,163.54/x - Step 3: Cross multiply
1,278,106.52x = 1,763,792.68 × 705,163.54 - Step 4: Simplify right side
1,278,106.52x = 1,243,762,290,054.89 - Step 5: Solve for x
x = 1,243,762,290,054.89/1,278,106.52 - Step 6: Final answer
x = 973,128.82
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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.