Finding the Fourth Proportional to 521,421.57, 781,935.51 and 240,741.99
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Solution
The fourth proportional to 521,421.57, 781,935.51 and 240,741.99 is: 361,022.10
Step by Step Solution
- Step 1: Write the proportion equation
521,421.57 : 781,935.51 = 240,741.99 : x - Step 2: Convert to fraction form
521,421.57/781,935.51 = 240,741.99/x - Step 3: Cross multiply
521,421.57x = 781,935.51 × 240,741.99 - Step 4: Simplify right side
521,421.57x = 188,244,711,631.85 - Step 5: Solve for x
x = 188,244,711,631.85/521,421.57 - Step 6: Final answer
x = 361,022.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.