Finding the Fourth Proportional to 2,875,963.05, 3,970,267.18 and 1,788,584.90
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Solution
The fourth proportional to 2,875,963.05, 3,970,267.18 and 1,788,584.90 is: 2,469,141.56
Step by Step Solution
- Step 1: Write the proportion equation
2,875,963.05 : 3,970,267.18 = 1,788,584.90 : x - Step 2: Convert to fraction form
2,875,963.05/3,970,267.18 = 1,788,584.90/x - Step 3: Cross multiply
2,875,963.05x = 3,970,267.18 × 1,788,584.90 - Step 4: Simplify right side
2,875,963.05x = 7,101,159,902,790.78 - Step 5: Solve for x
x = 7,101,159,902,790.78/2,875,963.05 - Step 6: Final answer
x = 2,469,141.56
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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.