Finding the Fourth Proportional to 939,849, 1,296,992.92 and 510,129.21
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Solution
The fourth proportional to 939,849, 1,296,992.92 and 510,129.21 is: 703,979.02
Step by Step Solution
- Step 1: Write the proportion equation
939,849 : 1,296,992.92 = 510,129.21 : x - Step 2: Convert to fraction form
939,849/1,296,992.92 = 510,129.21/x - Step 3: Cross multiply
939,849x = 1,296,992.92 × 510,129.21 - Step 4: Simplify right side
939,849x = 661,633,973,655.19 - Step 5: Solve for x
x = 661,633,973,655.19/939,849 - Step 6: Final answer
x = 703,979.02
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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.