Finding the Fourth Proportional to 812,794.02, 1,121,643.90 and 450,216.70
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Solution
The fourth proportional to 812,794.02, 1,121,643.90 and 450,216.70 is: 621,292.48
Step by Step Solution
- Step 1: Write the proportion equation
812,794.02 : 1,121,643.90 = 450,216.70 : x - Step 2: Convert to fraction form
812,794.02/1,121,643.90 = 450,216.70/x - Step 3: Cross multiply
812,794.02x = 1,121,643.90 × 450,216.70 - Step 4: Simplify right side
812,794.02x = 504,982,815,233.13 - Step 5: Solve for x
x = 504,982,815,233.13/812,794.02 - Step 6: Final answer
x = 621,292.48
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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.