Finding the Fourth Proportional to 771,608.44, 1,064,795.46 and 427,430.44
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Solution
The fourth proportional to 771,608.44, 1,064,795.46 and 427,430.44 is: 589,840.61
Step by Step Solution
- Step 1: Write the proportion equation
771,608.44 : 1,064,795.46 = 427,430.44 : x - Step 2: Convert to fraction form
771,608.44/1,064,795.46 = 427,430.44/x - Step 3: Cross multiply
771,608.44x = 1,064,795.46 × 427,430.44 - Step 4: Simplify right side
771,608.44x = 455,125,991,977.80 - Step 5: Solve for x
x = 455,125,991,977.80/771,608.44 - Step 6: Final answer
x = 589,840.61
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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.