Finding the Fourth Proportional to 1,451,990.21, 2,005,795.50 and 1,163,518.08
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Solution
The fourth proportional to 1,451,990.21, 2,005,795.50 and 1,163,518.08 is: 1,607,296.87
Step by Step Solution
- Step 1: Write the proportion equation
1,451,990.21 : 2,005,795.50 = 1,163,518.08 : x - Step 2: Convert to fraction form
1,451,990.21/2,005,795.50 = 1,163,518.08/x - Step 3: Cross multiply
1,451,990.21x = 2,005,795.50 × 1,163,518.08 - Step 4: Simplify right side
1,451,990.21x = 2,333,779,313,186.07 - Step 5: Solve for x
x = 2,333,779,313,186.07/1,451,990.21 - Step 6: Final answer
x = 1,607,296.87
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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.