Finding the Fourth Proportional to 1,231,335.68, 1,699,277.13 and 687,450.65
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Solution
The fourth proportional to 1,231,335.68, 1,699,277.13 and 687,450.65 is: 948,700.82
Step by Step Solution
- Step 1: Write the proportion equation
1,231,335.68 : 1,699,277.13 = 687,450.65 : x - Step 2: Convert to fraction form
1,231,335.68/1,699,277.13 = 687,450.65/x - Step 3: Cross multiply
1,231,335.68x = 1,699,277.13 × 687,450.65 - Step 4: Simplify right side
1,231,335.68x = 1,168,169,159,052.25 - Step 5: Solve for x
x = 1,168,169,159,052.25/1,231,335.68 - Step 6: Final answer
x = 948,700.82
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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.