Finding the Fourth Proportional to 520,570.98, 718,382.88 and 291,125.70
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Solution
The fourth proportional to 520,570.98, 718,382.88 and 291,125.70 is: 401,750.63
Step by Step Solution
- Step 1: Write the proportion equation
520,570.98 : 718,382.88 = 291,125.70 : x - Step 2: Convert to fraction form
520,570.98/718,382.88 = 291,125.70/x - Step 3: Cross multiply
520,570.98x = 718,382.88 × 291,125.70 - Step 4: Simplify right side
520,570.98x = 209,139,718,808.02 - Step 5: Solve for x
x = 209,139,718,808.02/520,570.98 - Step 6: Final answer
x = 401,750.63
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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.