Finding the Fourth Proportional to 771,220.12, 1,064,283.09 and 427,056.03
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Solution
The fourth proportional to 771,220.12, 1,064,283.09 and 427,056.03 is: 589,336.95
Step by Step Solution
- Step 1: Write the proportion equation
771,220.12 : 1,064,283.09 = 427,056.03 : x - Step 2: Convert to fraction form
771,220.12/1,064,283.09 = 427,056.03/x - Step 3: Cross multiply
771,220.12x = 1,064,283.09 × 427,056.03 - Step 4: Simplify right side
771,220.12x = 454,508,511,211.53 - Step 5: Solve for x
x = 454,508,511,211.53/771,220.12 - Step 6: Final answer
x = 589,336.95
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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.