Finding the Fourth Proportional to 765,802.79, 1,056,906.93 and 439,243.19
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Solution
The fourth proportional to 765,802.79, 1,056,906.93 and 439,243.19 is: 606,212.43
Step by Step Solution
- Step 1: Write the proportion equation
765,802.79 : 1,056,906.93 = 439,243.19 : x - Step 2: Convert to fraction form
765,802.79/1,056,906.93 = 439,243.19/x - Step 3: Cross multiply
765,802.79x = 1,056,906.93 × 439,243.19 - Step 4: Simplify right side
765,802.79x = 464,239,171,466.31 - Step 5: Solve for x
x = 464,239,171,466.31/765,802.79 - Step 6: Final answer
x = 606,212.43
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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.