Finding the Fourth Proportional to 516,911.36, 713,338.11 and 287,463.65
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Solution
The fourth proportional to 516,911.36, 713,338.11 and 287,463.65 is: 396,700.07
Step by Step Solution
- Step 1: Write the proportion equation
516,911.36 : 713,338.11 = 287,463.65 : x - Step 2: Convert to fraction form
516,911.36/713,338.11 = 287,463.65/x - Step 3: Cross multiply
516,911.36x = 713,338.11 × 287,463.65 - Step 4: Simplify right side
516,911.36x = 205,058,773,218.01 - Step 5: Solve for x
x = 205,058,773,218.01/516,911.36 - Step 6: Final answer
x = 396,700.07
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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.