Finding the Fourth Proportional to 1,129,510.69, 1,558,735.68 and 620,224.00
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Solution
The fourth proportional to 1,129,510.69, 1,558,735.68 and 620,224.00 is: 855,915.12
Step by Step Solution
- Step 1: Write the proportion equation
1,129,510.69 : 1,558,735.68 = 620,224.00 : x - Step 2: Convert to fraction form
1,129,510.69/1,558,735.68 = 620,224.00/x - Step 3: Cross multiply
1,129,510.69x = 1,558,735.68 × 620,224.00 - Step 4: Simplify right side
1,129,510.69x = 966,765,276,821.32 - Step 5: Solve for x
x = 966,765,276,821.32/1,129,510.69 - Step 6: Final answer
x = 855,915.12
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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.