Finding the Fourth Proportional to 1,423,997.79, 1,964,905.63 and 864,901.43
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Solution
The fourth proportional to 1,423,997.79, 1,964,905.63 and 864,901.43 is: 1,193,435.62
Step by Step Solution
- Step 1: Write the proportion equation
1,423,997.79 : 1,964,905.63 = 864,901.43 : x - Step 2: Convert to fraction form
1,423,997.79/1,964,905.63 = 864,901.43/x - Step 3: Cross multiply
1,423,997.79x = 1,964,905.63 × 864,901.43 - Step 4: Simplify right side
1,423,997.79x = 1,699,449,684,583.67 - Step 5: Solve for x
x = 1,699,449,684,583.67/1,423,997.79 - Step 6: Final answer
x = 1,193,435.62
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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.