Finding the Fourth Proportional to 765,813.08, 1,056,804.53 and 479,491.04
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Solution
The fourth proportional to 765,813.08, 1,056,804.53 and 479,491.04 is: 661,686.66
Step by Step Solution
- Step 1: Write the proportion equation
765,813.08 : 1,056,804.53 = 479,491.04 : x - Step 2: Convert to fraction form
765,813.08/1,056,804.53 = 479,491.04/x - Step 3: Cross multiply
765,813.08x = 1,056,804.53 × 479,491.04 - Step 4: Simplify right side
765,813.08x = 506,728,295,484.93 - Step 5: Solve for x
x = 506,728,295,484.93/765,813.08 - Step 6: Final answer
x = 661,686.66
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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.