Finding the Fourth Proportional to 516,933.35, 713,326.69 and 287,491.08
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Solution
The fourth proportional to 516,933.35, 713,326.69 and 287,491.08 is: 396,714.70
Step by Step Solution
- Step 1: Write the proportion equation
516,933.35 : 713,326.69 = 287,491.08 : x - Step 2: Convert to fraction form
516,933.35/713,326.69 = 287,491.08/x - Step 3: Cross multiply
516,933.35x = 713,326.69 × 287,491.08 - Step 4: Simplify right side
516,933.35x = 205,075,060,500.93 - Step 5: Solve for x
x = 205,075,060,500.93/516,933.35 - Step 6: Final answer
x = 396,714.70
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1.5x scale
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.