Finding the Fourth Proportional to 1,251,787.84, 1,727,467.62 and 678,827.84
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Solution
The fourth proportional to 1,251,787.84, 1,727,467.62 and 678,827.84 is: 936,782.64
Step by Step Solution
- Step 1: Write the proportion equation
1,251,787.84 : 1,727,467.62 = 678,827.84 : x - Step 2: Convert to fraction form
1,251,787.84/1,727,467.62 = 678,827.84/x - Step 3: Cross multiply
1,251,787.84x = 1,727,467.62 × 678,827.84 - Step 4: Simplify right side
1,251,787.84x = 1,172,653,113,154.54 - Step 5: Solve for x
x = 1,172,653,113,154.54/1,251,787.84 - Step 6: Final answer
x = 936,782.64
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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.