Finding the Fourth Proportional to 499,455.30, 689,115.47 and 284,590.74
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Solution
The fourth proportional to 499,455.30, 689,115.47 and 284,590.74 is: 392,659.52
Step by Step Solution
- Step 1: Write the proportion equation
499,455.30 : 689,115.47 = 284,590.74 : x - Step 2: Convert to fraction form
499,455.30/689,115.47 = 284,590.74/x - Step 3: Cross multiply
499,455.30x = 689,115.47 × 284,590.74 - Step 4: Simplify right side
499,455.30x = 196,115,880,129.79 - Step 5: Solve for x
x = 196,115,880,129.79/499,455.30 - Step 6: Final answer
x = 392,659.52
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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.