Finding the Fourth Proportional to 813,162.36, 1,122,188.68 and 450,552.30
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Solution
The fourth proportional to 813,162.36, 1,122,188.68 and 450,552.30 is: 621,775.82
Step by Step Solution
- Step 1: Write the proportion equation
813,162.36 : 1,122,188.68 = 450,552.30 : x - Step 2: Convert to fraction form
813,162.36/1,122,188.68 = 450,552.30/x - Step 3: Cross multiply
813,162.36x = 1,122,188.68 × 450,552.30 - Step 4: Simplify right side
813,162.36x = 505,604,690,807.96 - Step 5: Solve for x
x = 505,604,690,807.96/813,162.36 - Step 6: Final answer
x = 621,775.82
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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.