Finding the Fourth Proportional to 415,641.60, 624,076.80 and 322,252.80
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Solution
The fourth proportional to 415,641.60, 624,076.80 and 322,252.80 is: 483,855.55
Step by Step Solution
- Step 1: Write the proportion equation
415,641.60 : 624,076.80 = 322,252.80 : x - Step 2: Convert to fraction form
415,641.60/624,076.80 = 322,252.80/x - Step 3: Cross multiply
415,641.60x = 624,076.80 × 322,252.80 - Step 4: Simplify right side
415,641.60x = 201,110,496,215.04 - Step 5: Solve for x
x = 201,110,496,215.04/415,641.60 - Step 6: Final answer
x = 483,855.55
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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.