Finding the Fourth Proportional to 2,289,455.28, 3,159,776.99 and 1,371,720.83
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Solution
The fourth proportional to 2,289,455.28, 3,159,776.99 and 1,371,720.83 is: 1,893,171.68
Step by Step Solution
- Step 1: Write the proportion equation
2,289,455.28 : 3,159,776.99 = 1,371,720.83 : x - Step 2: Convert to fraction form
2,289,455.28/3,159,776.99 = 1,371,720.83/x - Step 3: Cross multiply
2,289,455.28x = 3,159,776.99 × 1,371,720.83 - Step 4: Simplify right side
2,289,455.28x = 4,334,331,902,968.12 - Step 5: Solve for x
x = 4,334,331,902,968.12/2,289,455.28 - Step 6: Final answer
x = 1,893,171.68
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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.