Finding the Fourth Proportional to 679,159.24, 1,018,772.70 and 258,467.72
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Solution
The fourth proportional to 679,159.24, 1,018,772.70 and 258,467.72 is: 387,714.46
Step by Step Solution
- Step 1: Write the proportion equation
679,159.24 : 1,018,772.70 = 258,467.72 : x - Step 2: Convert to fraction form
679,159.24/1,018,772.70 = 258,467.72/x - Step 3: Cross multiply
679,159.24x = 1,018,772.70 × 258,467.72 - Step 4: Simplify right side
679,159.24x = 263,319,856,967.24 - Step 5: Solve for x
x = 263,319,856,967.24/679,159.24 - Step 6: Final answer
x = 387,714.46
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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.