Finding the Fourth Proportional to 545,965.75, 753,344.04 and 316,478.26
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Solution
The fourth proportional to 545,965.75, 753,344.04 and 316,478.26 is: 436,688.59
Step by Step Solution
- Step 1: Write the proportion equation
545,965.75 : 753,344.04 = 316,478.26 : x - Step 2: Convert to fraction form
545,965.75/753,344.04 = 316,478.26/x - Step 3: Cross multiply
545,965.75x = 753,344.04 × 316,478.26 - Step 4: Simplify right side
545,965.75x = 238,417,010,960.57 - Step 5: Solve for x
x = 238,417,010,960.57/545,965.75 - Step 6: Final answer
x = 436,688.59
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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.