Finding the Fourth Proportional to 527,448.60, 727,880.99 and 285,730.61
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Solution
The fourth proportional to 527,448.60, 727,880.99 and 285,730.61 is: 394,309.27
Step by Step Solution
- Step 1: Write the proportion equation
527,448.60 : 727,880.99 = 285,730.61 : x - Step 2: Convert to fraction form
527,448.60/727,880.99 = 285,730.61/x - Step 3: Cross multiply
527,448.60x = 727,880.99 × 285,730.61 - Step 4: Simplify right side
527,448.60x = 207,977,874,212.05 - Step 5: Solve for x
x = 207,977,874,212.05/527,448.60 - Step 6: Final answer
x = 394,309.27
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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.