Finding the Fourth Proportional to 520,394.99, 718,135.76 and 294,035.63
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Solution
The fourth proportional to 520,394.99, 718,135.76 and 294,035.63 is: 405,763.90
Step by Step Solution
- Step 1: Write the proportion equation
520,394.99 : 718,135.76 = 294,035.63 : x - Step 2: Convert to fraction form
520,394.99/718,135.76 = 294,035.63/x - Step 3: Cross multiply
520,394.99x = 718,135.76 × 294,035.63 - Step 4: Simplify right side
520,394.99x = 211,157,499,146.95 - Step 5: Solve for x
x = 211,157,499,146.95/520,394.99 - Step 6: Final answer
x = 405,763.90
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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.