Finding the Fourth Proportional to 1,914,400.84, 2,641,890.90 and 1,054,991.92
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Solution
The fourth proportional to 1,914,400.84, 2,641,890.90 and 1,054,991.92 is: 1,455,898.63
Step by Step Solution
- Step 1: Write the proportion equation
1,914,400.84 : 2,641,890.90 = 1,054,991.92 : x - Step 2: Convert to fraction form
1,914,400.84/2,641,890.90 = 1,054,991.92/x - Step 3: Cross multiply
1,914,400.84x = 2,641,890.90 × 1,054,991.92 - Step 4: Simplify right side
1,914,400.84x = 2,787,173,553,021.53 - Step 5: Solve for x
x = 2,787,173,553,021.53/1,914,400.84 - Step 6: Final answer
x = 1,455,898.63
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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.