Finding the Fourth Proportional to 513,913.89, 709,277.17 and 296,081.09
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Solution
The fourth proportional to 513,913.89, 709,277.17 and 296,081.09 is: 408,635.68
Step by Step Solution
- Step 1: Write the proportion equation
513,913.89 : 709,277.17 = 296,081.09 : x - Step 2: Convert to fraction form
513,913.89/709,277.17 = 296,081.09/x - Step 3: Cross multiply
513,913.89x = 709,277.17 × 296,081.09 - Step 4: Simplify right side
513,913.89x = 210,003,553,319.13 - Step 5: Solve for x
x = 210,003,553,319.13/513,913.89 - Step 6: Final answer
x = 408,635.68
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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.