Finding the Fourth Proportional to 821,883.98, 1,134,204.08 and 459,313.90
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Solution
The fourth proportional to 821,883.98, 1,134,204.08 and 459,313.90 is: 633,855.51
Step by Step Solution
- Step 1: Write the proportion equation
821,883.98 : 1,134,204.08 = 459,313.90 : x - Step 2: Convert to fraction form
821,883.98/1,134,204.08 = 459,313.90/x - Step 3: Cross multiply
821,883.98x = 1,134,204.08 × 459,313.90 - Step 4: Simplify right side
821,883.98x = 520,955,694,248.63 - Step 5: Solve for x
x = 520,955,694,248.63/821,883.98 - Step 6: Final answer
x = 633,855.51
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1.5x scale
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.