Finding the Fourth Proportional to 507,622.92, 761,436.09 and 128,543.48
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Solution
The fourth proportional to 507,622.92, 761,436.09 and 128,543.48 is: 192,815.65
Step by Step Solution
- Step 1: Write the proportion equation
507,622.92 : 761,436.09 = 128,543.48 : x - Step 2: Convert to fraction form
507,622.92/761,436.09 = 128,543.48/x - Step 3: Cross multiply
507,622.92x = 761,436.09 × 128,543.48 - Step 4: Simplify right side
507,622.92x = 97,877,640,999.01 - Step 5: Solve for x
x = 97,877,640,999.01/507,622.92 - Step 6: Final answer
x = 192,815.65
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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.