Finding the Fourth Proportional to 728,295.15, 1,005,025.30 and 401,607.99
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Solution
The fourth proportional to 728,295.15, 1,005,025.30 and 401,607.99 is: 554,206.88
Step by Step Solution
- Step 1: Write the proportion equation
728,295.15 : 1,005,025.30 = 401,607.99 : x - Step 2: Convert to fraction form
728,295.15/1,005,025.30 = 401,607.99/x - Step 3: Cross multiply
728,295.15x = 1,005,025.30 × 401,607.99 - Step 4: Simplify right side
728,295.15x = 403,626,185,607.02 - Step 5: Solve for x
x = 403,626,185,607.02/728,295.15 - Step 6: Final answer
x = 554,206.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.