Finding the Fourth Proportional to 811,727.72, 1,120,107.95 and 549,549.68
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Solution
The fourth proportional to 811,727.72, 1,120,107.95 and 549,549.68 is: 758,326.90
Step by Step Solution
- Step 1: Write the proportion equation
811,727.72 : 1,120,107.95 = 549,549.68 : x - Step 2: Convert to fraction form
811,727.72/1,120,107.95 = 549,549.68/x - Step 3: Cross multiply
811,727.72x = 1,120,107.95 × 549,549.68 - Step 4: Simplify right side
811,727.72x = 615,554,966,896.30 - Step 5: Solve for x
x = 615,554,966,896.30/811,727.72 - Step 6: Final answer
x = 758,326.90
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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.