Finding the Fourth Proportional to 489,420.29, 734,129.01 and 134,434.65
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Solution
The fourth proportional to 489,420.29, 734,129.01 and 134,434.65 is: 201,651.58
Step by Step Solution
- Step 1: Write the proportion equation
489,420.29 : 734,129.01 = 134,434.65 : x - Step 2: Convert to fraction form
489,420.29/734,129.01 = 134,434.65/x - Step 3: Cross multiply
489,420.29x = 734,129.01 × 134,434.65 - Step 4: Simplify right side
489,420.29x = 98,692,376,514.20 - Step 5: Solve for x
x = 98,692,376,514.20/489,420.29 - Step 6: Final answer
x = 201,651.58
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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.