Finding the Fourth Proportional to 1,216,319.24, 1,678,787.02 and 707,315.24
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Solution
The fourth proportional to 1,216,319.24, 1,678,787.02 and 707,315.24 is: 976,249.99
Step by Step Solution
- Step 1: Write the proportion equation
1,216,319.24 : 1,678,787.02 = 707,315.24 : x - Step 2: Convert to fraction form
1,216,319.24/1,678,787.02 = 707,315.24/x - Step 3: Cross multiply
1,216,319.24x = 1,678,787.02 × 707,315.24 - Step 4: Simplify right side
1,216,319.24x = 1,187,431,643,960.18 - Step 5: Solve for x
x = 1,187,431,643,960.18/1,216,319.24 - Step 6: Final answer
x = 976,249.99
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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.