Finding the Fourth Proportional to 808,022.12, 1,212,257.34 and 352,653.08
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Solution
The fourth proportional to 808,022.12, 1,212,257.34 and 352,653.08 is: 529,077.45
Step by Step Solution
- Step 1: Write the proportion equation
808,022.12 : 1,212,257.34 = 352,653.08 : x - Step 2: Convert to fraction form
808,022.12/1,212,257.34 = 352,653.08/x - Step 3: Cross multiply
808,022.12x = 1,212,257.34 × 352,653.08 - Step 4: Simplify right side
808,022.12x = 427,506,284,703.61 - Step 5: Solve for x
x = 427,506,284,703.61/808,022.12 - Step 6: Final answer
x = 529,077.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.