Finding the Fourth Proportional to 2,138,216.58, 2,950,812.36 and 1,171,346.64
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Solution
The fourth proportional to 2,138,216.58, 2,950,812.36 and 1,171,346.64 is: 1,616,498.62
Step by Step Solution
- Step 1: Write the proportion equation
2,138,216.58 : 2,950,812.36 = 1,171,346.64 : x - Step 2: Convert to fraction form
2,138,216.58/2,950,812.36 = 1,171,346.64/x - Step 3: Cross multiply
2,138,216.58x = 2,950,812.36 × 1,171,346.64 - Step 4: Simplify right side
2,138,216.58x = 3,456,424,143,156.47 - Step 5: Solve for x
x = 3,456,424,143,156.47/2,138,216.58 - Step 6: Final answer
x = 1,616,498.62
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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.