Finding the Fourth Proportional to 1,133,410.20, 1,700,115.30 and 985,787.70
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Solution
The fourth proportional to 1,133,410.20, 1,700,115.30 and 985,787.70 is: 1,478,681.55
Step by Step Solution
- Step 1: Write the proportion equation
1,133,410.20 : 1,700,115.30 = 985,787.70 : x - Step 2: Convert to fraction form
1,133,410.20/1,700,115.30 = 985,787.70/x - Step 3: Cross multiply
1,133,410.20x = 1,700,115.30 × 985,787.70 - Step 4: Simplify right side
1,133,410.20x = 1,675,952,751,321.81 - Step 5: Solve for x
x = 1,675,952,751,321.81/1,133,410.20 - Step 6: Final answer
x = 1,478,681.55
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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.