Finding the Fourth Proportional to 489,005.60, 732,633.60 and 413,772.80
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Solution
The fourth proportional to 489,005.60, 732,633.60 and 413,772.80 is: 619,918.99
Step by Step Solution
- Step 1: Write the proportion equation
489,005.60 : 732,633.60 = 413,772.80 : x - Step 2: Convert to fraction form
489,005.60/732,633.60 = 413,772.80/x - Step 3: Cross multiply
489,005.60x = 732,633.60 × 413,772.80 - Step 4: Simplify right side
489,005.60x = 303,143,856,046.08 - Step 5: Solve for x
x = 303,143,856,046.08/489,005.60 - Step 6: Final answer
x = 619,918.99
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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.