Finding the Fourth Proportional to 624,958.72, 862,440.96 and 338,478.08
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Solution
The fourth proportional to 624,958.72, 862,440.96 and 338,478.08 is: 467,098.63
Step by Step Solution
- Step 1: Write the proportion equation
624,958.72 : 862,440.96 = 338,478.08 : x - Step 2: Convert to fraction form
624,958.72/862,440.96 = 338,478.08/x - Step 3: Cross multiply
624,958.72x = 862,440.96 × 338,478.08 - Step 4: Simplify right side
624,958.72x = 291,917,360,254.16 - Step 5: Solve for x
x = 291,917,360,254.16/624,958.72 - Step 6: Final answer
x = 467,098.63
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1.5x scale
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.