Finding the Fourth Proportional to 2,119,503.84, 2,923,432.72 and 1,394,119.68
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Solution
The fourth proportional to 2,119,503.84, 2,923,432.72 and 1,394,119.68 is: 1,922,909.98
Step by Step Solution
- Step 1: Write the proportion equation
2,119,503.84 : 2,923,432.72 = 1,394,119.68 : x - Step 2: Convert to fraction form
2,119,503.84/2,923,432.72 = 1,394,119.68/x - Step 3: Cross multiply
2,119,503.84x = 2,923,432.72 × 1,394,119.68 - Step 4: Simplify right side
2,119,503.84x = 4,075,615,088,107.93 - Step 5: Solve for x
x = 4,075,615,088,107.93/2,119,503.84 - Step 6: Final answer
x = 1,922,909.98
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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.