Finding the Fourth Proportional to 658,491.21, 987,058.85 and 258,970.05
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Solution
The fourth proportional to 658,491.21, 987,058.85 and 258,970.05 is: 388,188.44
Step by Step Solution
- Step 1: Write the proportion equation
658,491.21 : 987,058.85 = 258,970.05 : x - Step 2: Convert to fraction form
658,491.21/987,058.85 = 258,970.05/x - Step 3: Cross multiply
658,491.21x = 987,058.85 × 258,970.05 - Step 4: Simplify right side
658,491.21x = 255,618,678,442.59 - Step 5: Solve for x
x = 255,618,678,442.59/658,491.21 - Step 6: Final answer
x = 388,188.44
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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.