Finding the Fourth Proportional to 821,853.34, 1,134,135.68 and 459,280.02
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Solution
The fourth proportional to 821,853.34, 1,134,135.68 and 459,280.02 is: 633,794.18
Step by Step Solution
- Step 1: Write the proportion equation
821,853.34 : 1,134,135.68 = 459,280.02 : x - Step 2: Convert to fraction form
821,853.34/1,134,135.68 = 459,280.02/x - Step 3: Cross multiply
821,853.34x = 1,134,135.68 × 459,280.02 - Step 4: Simplify right side
821,853.34x = 520,885,859,749.72 - Step 5: Solve for x
x = 520,885,859,749.72/821,853.34 - Step 6: Final answer
x = 633,794.18
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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.