Finding the Fourth Proportional to 399,063.36, 595,455.36 and 385,533.12
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Solution
The fourth proportional to 399,063.36, 595,455.36 and 385,533.12 is: 575,266.45
Step by Step Solution
- Step 1: Write the proportion equation
399,063.36 : 595,455.36 = 385,533.12 : x - Step 2: Convert to fraction form
399,063.36/595,455.36 = 385,533.12/x - Step 3: Cross multiply
399,063.36x = 595,455.36 × 385,533.12 - Step 4: Simplify right side
399,063.36x = 229,567,762,761.52 - Step 5: Solve for x
x = 229,567,762,761.52/399,063.36 - Step 6: Final answer
x = 575,266.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.