Finding the Fourth Proportional to 813,358.06, 1,122,403.56 and 450,788.12
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Solution
The fourth proportional to 813,358.06, 1,122,403.56 and 450,788.12 is: 622,070.67
Step by Step Solution
- Step 1: Write the proportion equation
813,358.06 : 1,122,403.56 = 450,788.12 : x - Step 2: Convert to fraction form
813,358.06/1,122,403.56 = 450,788.12/x - Step 3: Cross multiply
813,358.06x = 1,122,403.56 × 450,788.12 - Step 4: Simplify right side
813,358.06x = 505,966,190,693.71 - Step 5: Solve for x
x = 505,966,190,693.71/813,358.06 - Step 6: Final answer
x = 622,070.67
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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.