Finding the Fourth Proportional to 558,668.16, 770,979.54 and 316,960.92
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Solution
The fourth proportional to 558,668.16, 770,979.54 and 316,960.92 is: 437,415.99
Step by Step Solution
- Step 1: Write the proportion equation
558,668.16 : 770,979.54 = 316,960.92 : x - Step 2: Convert to fraction form
558,668.16/770,979.54 = 316,960.92/x - Step 3: Cross multiply
558,668.16x = 770,979.54 × 316,960.92 - Step 4: Simplify right side
558,668.16x = 244,370,384,299.58 - Step 5: Solve for x
x = 244,370,384,299.58/558,668.16 - Step 6: Final answer
x = 437,415.99
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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.