Finding the Fourth Proportional to 771,564.89, 1,064,759.40 and 427,423.09
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Solution
The fourth proportional to 771,564.89, 1,064,759.40 and 427,423.09 is: 589,843.79
Step by Step Solution
- Step 1: Write the proportion equation
771,564.89 : 1,064,759.40 = 427,423.09 : x - Step 2: Convert to fraction form
771,564.89/1,064,759.40 = 427,423.09/x - Step 3: Cross multiply
771,564.89x = 1,064,759.40 × 427,423.09 - Step 4: Simplify right side
771,564.89x = 455,102,758,257.49 - Step 5: Solve for x
x = 455,102,758,257.49/771,564.89 - Step 6: Final answer
x = 589,843.79
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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.