Finding the Fourth Proportional to 513,811.35, 709,044.99 and 284,378.04
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Solution
The fourth proportional to 513,811.35, 709,044.99 and 284,378.04 is: 392,433.58
Step by Step Solution
- Step 1: Write the proportion equation
513,811.35 : 709,044.99 = 284,378.04 : x - Step 2: Convert to fraction form
513,811.35/709,044.99 = 284,378.04/x - Step 3: Cross multiply
513,811.35x = 709,044.99 × 284,378.04 - Step 4: Simplify right side
513,811.35x = 201,636,825,061.23 - Step 5: Solve for x
x = 201,636,825,061.23/513,811.35 - Step 6: Final answer
x = 392,433.58
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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.