Finding the Fourth Proportional to 403,368.40, 605,052.60 and 385,653.70
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Solution
The fourth proportional to 403,368.40, 605,052.60 and 385,653.70 is: 578,480.55
Step by Step Solution
- Step 1: Write the proportion equation
403,368.40 : 605,052.60 = 385,653.70 : x - Step 2: Convert to fraction form
403,368.40/605,052.60 = 385,653.70/x - Step 3: Cross multiply
403,368.40x = 605,052.60 × 385,653.70 - Step 4: Simplify right side
403,368.40x = 233,340,773,884.62 - Step 5: Solve for x
x = 233,340,773,884.62/403,368.40 - Step 6: Final answer
x = 578,480.55
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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.