Finding the Fourth Proportional to 622,778.42, 859,497.71 and 381,220.63
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Solution
The fourth proportional to 622,778.42, 859,497.71 and 381,220.63 is: 526,123.33
Step by Step Solution
- Step 1: Write the proportion equation
622,778.42 : 859,497.71 = 381,220.63 : x - Step 2: Convert to fraction form
622,778.42/859,497.71 = 381,220.63/x - Step 3: Cross multiply
622,778.42x = 859,497.71 × 381,220.63 - Step 4: Simplify right side
622,778.42x = 327,658,255,507.09 - Step 5: Solve for x
x = 327,658,255,507.09/622,778.42 - Step 6: Final answer
x = 526,123.33
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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.