Finding the Fourth Proportional to 506,731.14, 699,311.07 and 280,376.64
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Solution
The fourth proportional to 506,731.14, 699,311.07 and 280,376.64 is: 386,931.99
Step by Step Solution
- Step 1: Write the proportion equation
506,731.14 : 699,311.07 = 280,376.64 : x - Step 2: Convert to fraction form
506,731.14/699,311.07 = 280,376.64/x - Step 3: Cross multiply
506,731.14x = 699,311.07 × 280,376.64 - Step 4: Simplify right side
506,731.14x = 196,070,488,121.41 - Step 5: Solve for x
x = 196,070,488,121.41/506,731.14 - Step 6: Final answer
x = 386,931.99
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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.