Finding the Fourth Proportional to 1,624,415.92, 2,240,990.10 and 979,477.81
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Solution
The fourth proportional to 1,624,415.92, 2,240,990.10 and 979,477.81 is: 1,351,254.96
Step by Step Solution
- Step 1: Write the proportion equation
1,624,415.92 : 2,240,990.10 = 979,477.81 : x - Step 2: Convert to fraction form
1,624,415.92/2,240,990.10 = 979,477.81/x - Step 3: Cross multiply
1,624,415.92x = 2,240,990.10 × 979,477.81 - Step 4: Simplify right side
1,624,415.92x = 2,195,000,069,777.21 - Step 5: Solve for x
x = 2,195,000,069,777.21/1,624,415.92 - Step 6: Final answer
x = 1,351,254.96
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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.