Finding the Fourth Proportional to 879,201.54, 1,213,306.68 and 516,633.38
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Solution
The fourth proportional to 879,201.54, 1,213,306.68 and 516,633.38 is: 712,959.09
Step by Step Solution
- Step 1: Write the proportion equation
879,201.54 : 1,213,306.68 = 516,633.38 : x - Step 2: Convert to fraction form
879,201.54/1,213,306.68 = 516,633.38/x - Step 3: Cross multiply
879,201.54x = 1,213,306.68 × 516,633.38 - Step 4: Simplify right side
879,201.54x = 626,834,731,064.98 - Step 5: Solve for x
x = 626,834,731,064.98/879,201.54 - Step 6: Final answer
x = 712,959.09
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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.