Finding the Fourth Proportional to 1,220,270.30, 1,683,796.21 and 676,405.92
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Solution
The fourth proportional to 1,220,270.30, 1,683,796.21 and 676,405.92 is: 933,342.17
Step by Step Solution
- Step 1: Write the proportion equation
1,220,270.30 : 1,683,796.21 = 676,405.92 : x - Step 2: Convert to fraction form
1,220,270.30/1,683,796.21 = 676,405.92/x - Step 3: Cross multiply
1,220,270.30x = 1,683,796.21 × 676,405.92 - Step 4: Simplify right side
1,220,270.30x = 1,138,929,729,140.78 - Step 5: Solve for x
x = 1,138,929,729,140.78/1,220,270.30 - Step 6: Final answer
x = 933,342.17
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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.