Finding the Fourth Proportional to 4,258,467.91, 6,388,708.71 and 1,379,829.97
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Solution
The fourth proportional to 4,258,467.91, 6,388,708.71 and 1,379,829.97 is: 2,070,071.19
Step by Step Solution
- Step 1: Write the proportion equation
4,258,467.91 : 6,388,708.71 = 1,379,829.97 : x - Step 2: Convert to fraction form
4,258,467.91/6,388,708.71 = 1,379,829.97/x - Step 3: Cross multiply
4,258,467.91x = 6,388,708.71 × 1,379,829.97 - Step 4: Simplify right side
4,258,467.91x = 8,815,331,715,714.50 - Step 5: Solve for x
x = 8,815,331,715,714.50/4,258,467.91 - Step 6: Final answer
x = 2,070,071.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.