Finding the Fourth Proportional to 811,652.80, 1,119,870.70 and 484,832.08
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Solution
The fourth proportional to 811,652.80, 1,119,870.70 and 484,832.08 is: 668,942.73
Step by Step Solution
- Step 1: Write the proportion equation
811,652.80 : 1,119,870.70 = 484,832.08 : x - Step 2: Convert to fraction form
811,652.80/1,119,870.70 = 484,832.08/x - Step 3: Cross multiply
811,652.80x = 1,119,870.70 × 484,832.08 - Step 4: Simplify right side
811,652.80x = 542,949,240,812.06 - Step 5: Solve for x
x = 542,949,240,812.06/811,652.80 - Step 6: Final answer
x = 668,942.73
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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.