Finding the Fourth Proportional to 1,398,991.32, 2,099,150.88 and 724,946.64
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Solution
The fourth proportional to 1,398,991.32, 2,099,150.88 and 724,946.64 is: 1,087,763.99
Step by Step Solution
- Step 1: Write the proportion equation
1,398,991.32 : 2,099,150.88 = 724,946.64 : x - Step 2: Convert to fraction form
1,398,991.32/2,099,150.88 = 724,946.64/x - Step 3: Cross multiply
1,398,991.32x = 2,099,150.88 × 724,946.64 - Step 4: Simplify right side
1,398,991.32x = 1,521,772,377,309.04 - Step 5: Solve for x
x = 1,521,772,377,309.04/1,398,991.32 - Step 6: Final answer
x = 1,087,763.99
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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.