Finding the Fourth Proportional to 415,718.57, 573,648.64 and 306,880.74
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Solution
The fourth proportional to 415,718.57, 573,648.64 and 306,880.74 is: 423,463.69
Step by Step Solution
- Step 1: Write the proportion equation
415,718.57 : 573,648.64 = 306,880.74 : x - Step 2: Convert to fraction form
415,718.57/573,648.64 = 306,880.74/x - Step 3: Cross multiply
415,718.57x = 573,648.64 × 306,880.74 - Step 4: Simplify right side
415,718.57x = 176,041,719,143.19 - Step 5: Solve for x
x = 176,041,719,143.19/415,718.57 - Step 6: Final answer
x = 423,463.69
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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.