Finding the Fourth Proportional to 939,808.09, 1,296,900.47 and 510,078.99
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Solution
The fourth proportional to 939,808.09, 1,296,900.47 and 510,078.99 is: 703,890.18
Step by Step Solution
- Step 1: Write the proportion equation
939,808.09 : 1,296,900.47 = 510,078.99 : x - Step 2: Convert to fraction form
939,808.09/1,296,900.47 = 510,078.99/x - Step 3: Cross multiply
939,808.09x = 1,296,900.47 × 510,078.99 - Step 4: Simplify right side
939,808.09x = 661,521,681,868.13 - Step 5: Solve for x
x = 661,521,681,868.13/939,808.09 - Step 6: Final answer
x = 703,890.18
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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.