Finding the Fourth Proportional to 489,219.10, 732,953.85 and 419,235.10
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Solution
The fourth proportional to 489,219.10, 732,953.85 and 419,235.10 is: 628,102.99
Step by Step Solution
- Step 1: Write the proportion equation
489,219.10 : 732,953.85 = 419,235.10 : x - Step 2: Convert to fraction form
489,219.10/732,953.85 = 419,235.10/x - Step 3: Cross multiply
489,219.10x = 732,953.85 × 419,235.10 - Step 4: Simplify right side
489,219.10x = 307,279,980,600.14 - Step 5: Solve for x
x = 307,279,980,600.14/489,219.10 - Step 6: Final answer
x = 628,102.99
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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.