Finding the Fourth Proportional to 558,519.69, 770,695.49 and 313,448.23
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Solution
The fourth proportional to 558,519.69, 770,695.49 and 313,448.23 is: 432,523.95
Step by Step Solution
- Step 1: Write the proportion equation
558,519.69 : 770,695.49 = 313,448.23 : x - Step 2: Convert to fraction form
558,519.69/770,695.49 = 313,448.23/x - Step 3: Cross multiply
558,519.69x = 770,695.49 × 313,448.23 - Step 4: Simplify right side
558,519.69x = 241,573,138,956.47 - Step 5: Solve for x
x = 241,573,138,956.47/558,519.69 - Step 6: Final answer
x = 432,523.95
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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.