Finding the Fourth Proportional to 717,676.54, 989,955.68 and 427,093.29
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Solution
The fourth proportional to 717,676.54, 989,955.68 and 427,093.29 is: 589,128.12
Step by Step Solution
- Step 1: Write the proportion equation
717,676.54 : 989,955.68 = 427,093.29 : x - Step 2: Convert to fraction form
717,676.54/989,955.68 = 427,093.29/x - Step 3: Cross multiply
717,676.54x = 989,955.68 × 427,093.29 - Step 4: Simplify right side
717,676.54x = 422,803,426,189.92 - Step 5: Solve for x
x = 422,803,426,189.92/717,676.54 - Step 6: Final answer
x = 589,128.12
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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.