Finding the Fourth Proportional to 528,655.10, 792,982.67 and 129,291.12
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Solution
The fourth proportional to 528,655.10, 792,982.67 and 129,291.12 is: 193,936.69
Step by Step Solution
- Step 1: Write the proportion equation
528,655.10 : 792,982.67 = 129,291.12 : x - Step 2: Convert to fraction form
528,655.10/792,982.67 = 129,291.12/x - Step 3: Cross multiply
528,655.10x = 792,982.67 × 129,291.12 - Step 4: Simplify right side
528,655.10x = 102,525,616,898.44 - Step 5: Solve for x
x = 102,525,616,898.44/528,655.10 - Step 6: Final answer
x = 193,936.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.