Finding the Fourth Proportional to 890,330.80, 1,228,718.86 and 503,181.99
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Solution
The fourth proportional to 890,330.80, 1,228,718.86 and 503,181.99 is: 694,426.39
Step by Step Solution
- Step 1: Write the proportion equation
890,330.80 : 1,228,718.86 = 503,181.99 : x - Step 2: Convert to fraction form
890,330.80/1,228,718.86 = 503,181.99/x - Step 3: Cross multiply
890,330.80x = 1,228,718.86 × 503,181.99 - Step 4: Simplify right side
890,330.80x = 618,269,201,125.33 - Step 5: Solve for x
x = 618,269,201,125.33/890,330.80 - Step 6: Final answer
x = 694,426.39
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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.