Finding the Fourth Proportional to 520,777.52, 718,638.92 and 291,294.96
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Solution
The fourth proportional to 520,777.52, 718,638.92 and 291,294.96 is: 401,967.99
Step by Step Solution
- Step 1: Write the proportion equation
520,777.52 : 718,638.92 = 291,294.96 : x - Step 2: Convert to fraction form
520,777.52/718,638.92 = 291,294.96/x - Step 3: Cross multiply
520,777.52x = 718,638.92 × 291,294.96 - Step 4: Simplify right side
520,777.52x = 209,335,895,455.84 - Step 5: Solve for x
x = 209,335,895,455.84/520,777.52 - Step 6: Final answer
x = 401,967.99
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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.