Finding the Fourth Proportional to 3,386,963.18, 4,677,888.38 and 2,230,578.74
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Solution
The fourth proportional to 3,386,963.18, 4,677,888.38 and 2,230,578.74 is: 3,080,753.41
Step by Step Solution
- Step 1: Write the proportion equation
3,386,963.18 : 4,677,888.38 = 2,230,578.74 : x - Step 2: Convert to fraction form
3,386,963.18/4,677,888.38 = 2,230,578.74/x - Step 3: Cross multiply
3,386,963.18x = 4,677,888.38 × 2,230,578.74 - Step 4: Simplify right side
3,386,963.18x = 10,434,398,368,521.04 - Step 5: Solve for x
x = 10,434,398,368,521.04/3,386,963.18 - Step 6: Final answer
x = 3,080,753.41
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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.