Finding the Fourth Proportional to 489,421.14, 734,102.20 and 291,004.20
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Solution
The fourth proportional to 489,421.14, 734,102.20 and 291,004.20 is: 436,488.75
Step by Step Solution
- Step 1: Write the proportion equation
489,421.14 : 734,102.20 = 291,004.20 : x - Step 2: Convert to fraction form
489,421.14/734,102.20 = 291,004.20/x - Step 3: Cross multiply
489,421.14x = 734,102.20 × 291,004.20 - Step 4: Simplify right side
489,421.14x = 213,626,823,429.24 - Step 5: Solve for x
x = 213,626,823,429.24/489,421.14 - Step 6: Final answer
x = 436,488.75
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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.