Finding the Fourth Proportional to 3,425,815.97, 5,138,323.95 and 1,376,393.57
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Solution
The fourth proportional to 3,425,815.97, 5,138,323.95 and 1,376,393.57 is: 2,064,429.64
Step by Step Solution
- Step 1: Write the proportion equation
3,425,815.97 : 5,138,323.95 = 1,376,393.57 : x - Step 2: Convert to fraction form
3,425,815.97/5,138,323.95 = 1,376,393.57/x - Step 3: Cross multiply
3,425,815.97x = 5,138,323.95 × 1,376,393.57 - Step 4: Simplify right side
3,425,815.97x = 7,072,356,023,106.37 - Step 5: Solve for x
x = 7,072,356,023,106.37/3,425,815.97 - Step 6: Final answer
x = 2,064,429.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.