Finding the Fourth Proportional to 811,209.93, 1,119,619.46 and 521,184.05
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Solution
The fourth proportional to 811,209.93, 1,119,619.46 and 521,184.05 is: 719,330.21
Step by Step Solution
- Step 1: Write the proportion equation
811,209.93 : 1,119,619.46 = 521,184.05 : x - Step 2: Convert to fraction form
811,209.93/1,119,619.46 = 521,184.05/x - Step 3: Cross multiply
811,209.93x = 1,119,619.46 × 521,184.05 - Step 4: Simplify right side
811,209.93x = 583,527,804,525.05 - Step 5: Solve for x
x = 583,527,804,525.05/811,209.93 - Step 6: Final answer
x = 719,330.21
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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.